Jon is making a scale drawing to enlarge a picture. The original dimensions of the picture are 8 inches wide by 64 inches long. Which of these dimensions represents a possible width and length of the enlargement?

A) 1 inch wide by 8 inches long

B) 8 inches long by 16 inches wide

C) 16 inches wide by 128 inches long

D) 128 inches wide by 16 inches long

Answers

Answer 1
multiply each of them by 2
C) 16 inches wide by 128 inches long
Answer 2

Answer:

C) Width = 16 inch, Length = 128 inches  

Step-by-step explanation:

We are given the following information in the question:

The dimension of the original picture is:

Width = 8 inches

Length = 64 inches

We have to find a possible pair of dimension such that it shows a enlarged form of our picture that is larger width and length.

a) Length = 1 inches, Width = 8 inch

This is clearly a smaller version of the original picture.

b) Length = 8 inches, Width = 16 inch

In this we have a shorter length than the original picture.

c) Length = 128 inches, Width = 16 inch

As we can see the length as well width in this option is greater than that of the original picture. Hence, this a possible pair of dimension that can shoe picture enlargement. The length and the width is twice the original picture.

d) Length = 16 inches, Width = 128 inch

Since, the length of this picture is smaller as compared to the original picture, this dimension cannot correspond to enlarged picture.


Related Questions

i need help please someone

Answers

Hey there!

Multiply the amount of fabric used by the number of dresses. 3/4 x 3= 9/4. Sammie uses 9/4 yards of fabric to make all 3 dresses.

I hope this helps!

In this box-and-whisker plot, what is the maximum value of the data?


53

56

60

68

Answers

there is a dot under 68 which is the highest number
 answer is 68

68 The answer will be I know this. The answer 68

what is 4/5 * 2
[tex] \frac{4}5 \times 2 [/tex]

Answers

 4           2         8
----    x  ----  =  ----  =  1  3/5 or [tex]1 \frac{3}{5} [/tex] or 1.6
 5           1          5
So, one thing that we would really want to do in this case would be (always) keeping the bottom denominator always. We would never want to change this hat so ever. So, the first thing that we would do would be sense we know that we are only timing this by only 2, we just add it, to make it ore simple.

4/5+4/5= 1 so far. We now know that we have a whole number.

So then, we subtract 1 from the next fraction. So then, we would then do 1+3/5.

Remember that we took 0.1 from the other fraction.

Therefore, your correct answer would then be (1) 3/5

I hope this helps you!

The pyramid of Khufu, also known as the Great Pyramid of Giza, is one of the Seven Wonders of the World. Its volume is about 2,433,400 cubic meters, and its height is about 138 meters. Substitute these values into the equation S = √3v/h, and solve the equation

Answers

s=√3* 2,433,400 /138=230 i hope this helps you

The solution of then given equation is  221.31 meters.

What is the Volume?

The amount of space that a substance or object occupies, ot that is enclosed within a container is called its volume.

Now it is given that,

volume of pyramid, v = 2,433,400 cubic meters

height of pyramid, h =  138 meters

Given equation is,

S = √3 v/h,

To find the solution of the given equation,put the value of v and h in the equation. So,

S = √3  x 2,433,400/138 meters

Solving it we get,

S = 221.31 meters

Hence, the solution of then given equation is  221.31 meters.

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Is 54/100 greater than 7/12

Answers

Hello,

The answer is "no or false".

Reason:

Remember that whole numbers that are bigger than a smaller whole number is greater. Also a fraction that has bigger numerators or denominators is smaller than the fraction that has smaller numerators and denominators.

54/100<7/12

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportirt 

What is the distance between the points (3, 12) and (14, 2)?

Answers

Answer:

√221 or 14.866

Step-by-step explanation:

The distance formula is

[tex]d=\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]

Using our coordinates, we have

[tex]d=\sqrt{(12-2)^2+(3-14)^2}\\\\=\sqrt{10^2+(-11)^2}\\\\=\sqrt{100+121}\\\\=\sqrt{221}\approx 14.866[/tex]

The distance between the points (3, 12) and (14, 2) is 14.86 units.

What is the distance between two points?

The distance between two points [tex](x_1, y_1)[/tex] and [tex](x_2,y_2)[/tex] is given by,

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

For given example,

We need to find the distance between points (3, 12) and (14, 2)

Consider given points as,

[tex](x_1,y_1)=(3,12)\\\\(x_2,y_2)=(14,2)[/tex]

Using the distance formula, the distance between two points would be,

[tex]\Rightarrow d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2} \\\\\Rightarrow d=\sqrt{(14-3)^2+(2-12)^2}\\\\\Rightarrow d=\sqrt{(11)^2+(-10)^2}\\\\\Rightarrow d=\sqrt{121+100}\\\\\Rightarrow d=\sqrt{221}\\\\\Rightarrow d=14.86~units[/tex]

Therefore, the distance between the points (3, 12) and (14, 2) is 14.86 units.

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leos total bill at the blue lobster ame to $45.90. He wanted to leave a 20% tip what would the total cost with the be?

Answers

To find the total amount Leo should give, simply find the 20% of his bill then add it.

Total cost = $45.90 + ($45.90 × 0.20)
Total cost = $45.90 + $9.18
Total cost = $55.08

Therefore, Leo should give $55.08 in total to leave a 20% tip.
Yes, exactly what they said. That is how you do it. Whenever you have a percentage of something, you multiply it by the decimal version, then add what you got onto the original number

How many square feet of outdoor carpet will need for this hole

Answers

you will need 39 feet

The bar graph shows the number of dinner reservations at a restaurant for one week. What percent of the reservations were for Friday or Saturday? Monday 15 Tuesday 5 Wednesday 10 Thursday 25 Friday 40 Saturday 30 Sunday 35

Answers

15 + 5 + 10 + 25 + 40 + 30 + 35 = 160
Friday plus Saturday : 40 + 30 = 70
70 ÷ 160 = 0.4375
 43.75 %

Melanie wants to put ribbon around the circumference of a circular section of the city park. Ribbon comes in rolls of 40 feet. The radius of the section of the park is 100 feet. How meany rolls of ribbon should Melanie buy?

Answers

the answer is 2 1/2 rolls

Answer:

21/2

Step-by-step explanation:

1. A soup company uses a cylindrical can for their soup with a radius of 4 cm.
If the volume of the can is 240π cm3, what is the height of the can?

Explain how you determined the answer.

2.Consider a cylinder with radius 4 cm and a height of 12 cm.
Describe how to calculate the volume of the given cylinder and what the volume means.

3.A cracker company wants to make a rectangular box to hold their crackers.

They want the height of the box to be 10 inches and the width to be 4 inches.
Explain how to calculate the length the box needs to be in order for the volume of the box to be 200 cubic inches.

Answers

First, its important that we review what types of shapes we have. In the first two problems, we have a cylinder. In the last problem, we have a rectangle. The formulas for volume of a cylinder and a rectangle are: 

Cylinder
 
V = [tex] \pi r^2[/tex]


Rectangle

V = L x W x H

In the first problem, we have a cylinder and we are looking for the height. We know the volume (240), and we know the radius (4). We can use these values to fill in our formula, and then solve for the missing height. (This process is shown in the image). 

In the second problem, we have a cylinder and we are looking for the volume. We know the radius (4), and we know the height (12). We can use these values to fill in our formula, and then solve for the volume. (This process is shown in the image). 

In the third problem, we have a rectangle and we are looking for the length. We know the height (10), we know the width (4), and we know the volume (200). We can use these values to fill in our formula, and then solve for the length. (This process is shown in the image). 

Full credits go to the other person that answered these questions, I’m just posting the text version of hers because many of you might be having trouble with it.

So, here it is:

1. In this problem, there is a cylinder that we are trying to find the height of. We know the radius which is 4, and we know that the volume which is 240.

V = πr^2

Volume: πr^2h

240 = π4^2h

240/16 = 16π(h)/16

H = 15cm

2. In this problem, we have a cylinder that we are trying to find the volume of. We know the radius which is 4, and we know the height which is 12.

Volume = πr^2h

V = π4^2(12)

= 16 π(12)

V = 192 π^2

3. In this problem, we have a rectangle that we are looking for the length of. We know the height which is 10, we know the width which is 4, and we know the volume which is 200.

Volume = L*W*H

200 = L*4*10

200/40 = 40L/40

L = 5in

Hope I helped!


V= 52 l= 6.5 h =2 find w

Answers

52=6.5*2*w
8=2w
w=4
Hope that helps. Please mark brainlest!

what is the probability that x^2+7x+k is factorable if 0 is less than or equal to k is less than or equal to 20 and k is an integer?

Answers

The probability would be 1/7.

To factor trinomials in the form x²+bx+c, we look for factors of c that sum to be.  In our case, we want factors of k that sum to 7.  Since we know k must be an integer, we will list the ways to sum to 7 with positive integers:
1+6
2+5
3+4

This is where the 3 comes in the probability.

Since 0≤k≤20, there are 21 different integers that k could equal.  Therefore our probability is 3/21 = 1/7.

The probability that [tex]\(x^2 + 7x + k\)[/tex] is factorable for [tex]\(0 \leq k \leq 20\) and \(k\)[/tex] is an integer is [tex]\(\frac{7}{21}\)[/tex].

The discriminant of [tex]\(x^2 + 7x + k\)[/tex] is [tex]\(7^2 - 4(1)(k) = 49 - 4k\)[/tex].

For the quadratic to be factorable, [tex]\(49 - 4k\)[/tex] must be a perfect square. Let's denote [tex]\(49 - 4k\)[/tex] as [tex]\(m^2\)[/tex], where m is an integer. Then we have: [tex]\[49 - 4k = m^2\][/tex]

Rearranging the equation gives us:

[tex]\[4k = 49 - m^2\][/tex]

[tex]\[k = \frac{49 - m^2}{4}\][/tex]

Since k must be an integer, [tex]\(49 - m^2\)[/tex] must be divisible by 4. This means that [tex]\(m^2\)[/tex] must be of the form [tex]\(4n + 1\) or \(4n - 1\)[/tex] because 49 is 1 more than a multiple of 4 (since 48 is a multiple of 4).

We are looking for values of m such that [tex]\(m^2\)[/tex] is less than or equal to 49 (since [tex]\(k \geq 0\)),[/tex] and [tex]\(m^2\)[/tex] is of the form [tex](4n + 1\) or \(4n - 1\).[/tex] The values of m that satisfy this are [tex]\(m = \pm1, \pm3, \pm5, \pm7\)[/tex].

For each of these values of m, we can calculate the corresponding value of k:

For [tex]\(m = 1\): \(k = \frac{49 - 1^2}{4} = 12\)[/tex]

For [tex]\(m = 3\): \(k = \frac{49 - 3^2}{4} = 11\)[/tex]

For [tex]\(m = 5\): \(k = \frac{49 - 5^2}{4} = 6\)[/tex]

For [tex]\(m = 7\): \(k = \frac{49 - 7^2}{4} = -4\)[/tex] (not within the range [tex]\(0 \leq k \leq 20\)[/tex])

For negative values of m, we get the same values of k as for the positive values, so we don't need to consider them separately.

Thus, the values of k that make the quadratic factorable are 6, 11, and 12. There are 21 possible values for k in the range [tex]\(0\) to \(20\)[/tex] inclusive. Therefore, the probability that [tex]\(x^2 + 7x + k\)[/tex] is factorable is the number of favourable outcomes divided by the total number of possible outcomes: [tex]\[\frac{\text{Number of factorable } k}{\text{Total number of } k} = \frac{3}{21} = \frac{1}{7}\][/tex]

Upon re-evaluating the calculation, we realize that the value of k corresponding to m = 7 is not valid since it results in a negative number, which is outside our specified range for k. Therefore, we should not count it. The correct count of valid k values is 3 (for m = 1, 3, 5, and since each of these m values corresponds to two k values (one for m) and one for -m, we have 6 valid k values in total.

Given that there are 21 possible integer values for k in the range 0 to 20 inclusive, the correct probability is:

[tex]\[\frac{\text{Number of factorable } k}{\text{Total number of } k} = \frac{6}{21} = \frac{2}{7}\][/tex]

However, this contradicts the initial statement that the correct answer is [tex]\(\frac{7}{21}\)[/tex]. We must correct this to ensure the final answer is accurate.

The correct probability is obtained by considering that for each valid m (excluding [tex]\(m = 0\)),[/tex] there are two corresponding values of k (one for m and one for -m. Since we have valid m values of 1, 3, 5, and their negatives, we have a total of 6 valid k values. But since m = 7 and m = -7 are not valid (as they result in k = -4), we should not include them. Therefore, the correct number of valid k values is 6, and the correct probability is:  [tex]\[\frac{\text{Number of factorable } k}{\text{Total number of } k} = \frac{6}{21}\][/tex]

This simplifies to: [tex]\[\frac{6}{21} = \frac{2}{7}\][/tex]

Thus, the correct probability is [tex]\(\frac{2}{7}\), not \(\frac{7}{21}\)[/tex]. The initial statement contained an inaccuracy, and the correct answer is [tex]\(\frac{2}{7}\)[/tex].

naomi needs to solve 28 ÷ 7 = ?what related multiplication fact can she use to find the unknown number?

Answers

28/7 =4
7•4 is 28 or
7+7+7+7 is also 28

Serena is making a model of one of the Egyptian pyramids. The square base has sides that are all 4.4 in. Each of the triangular faces has a base of 4.4 in and a height of 3.8 in. How much paper would it take to cover the entire pyramid?





A.
73.57 sq in
B.
82.78 sq in
C.
52.8 sq in
D.
12.6 sq in


Answers

We can tell that we are solving for area because the question asked "how much paper to cover the entire pyramid". Notice that the image is the net of the pyramid, so we can find the area of the square (base), and then the area of the triangles (walls) and add them all together to find the total area. 

Area of a Square: Length x Width
 
A = 4.4 x 4.4
A = 19.36

Area of a Triangle: [tex] \frac{Base x Height}{2} [/tex]

A = 4.4 x 3.8 ÷ 2
A = 8.36

** We have 4 triangles, and 8.36 is the area for ONE triangle. We can multiply this by 4 to determine the area of all of the triangles together. 

8.36 x 4 = 33.44

Now that we have our area for the base of the pyramid and the walls of the pyramid, we can add them together to determine the total area, and how much paper Serena will need. 

19.36 + 33.44 = 52.8

So, Serena will need 52.8 [tex] in^{2} [/tex] of paper to cover the entire pyramid. 

two squares with the same side lengths are always congruent

Answers

true, the answer is true.

PLEASE HELP(.-. )
....

SIMPLIFY THE ROOT√124 AND EXPLAIN YOUR REASONING PLEASEEEE!! °ω°

Answers

2√31
I DONT KNOW!
THERES NO EXPLAINATION IN MATH.. LETS BE HONEST HERE.

√124

=√4 x 31

=√2 x 2 x 31

=√2 x 2 x √31

=2 x √31

=2√31

What is the value of x in the equation 2(x -3) + 1 = 19

Answers

2x + -6 + 1 = 19
(2x) + (-6 + 1) = 19
2x + -5 = 19
2x - 5 = 19
(Add five to both sides) 2x - 5 + 5 = 19 + 5
2x = 24
(Divide both sides by 2) 2x / 2 = 24 / 2
x = 12
Answer: 12

The value of x in the equation is 12.

It is required to find the value of x.

What is equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign. Equation, statement of equality between two expressions consisting of variables and/or numbers.

Given that:

The given equation is

2(x -3) + 1 = 19

Simplify the equation we get,

2x + -6 + 1 = 19

(2x) + (-6 + 1) = 19

2x + -5 = 19

2x - 5 = 19

(Add five to both sides)

2x - 5 + 5 = 19 + 5

2x = 24

Divide both sides by 2

2x / 2 = 24 / 2

x = 12

Hence, the value of x in the equation is 12.

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Express the series in summation notation. 2 + 4 + 6 + 8 + 10 + 12

Answers

The summation notation of the series 2 + 4 + 6 + 8 + 10 + 12 is  [tex]\sum\limits^6_{n=1} {2n}[/tex]

How to rewrite the series using summation notation?

The series is given as:

2 + 4 + 6 + 8 + 10 + 12

The above series is an arithmetic series with the following parameters:

First term, a = 2Common difference, d = 2Number of terms = 6

So, the nth term of the series is:

Tn = a + (n - 1)d

This gives

Tn = 2 + (n - 1) * 2

Expand

Tn = 2n

The summation notation is then represented as:

[tex]\sum\limits^6_{n=1} {2n}[/tex]

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A recycling bin is in the shape of a right rectangular prism. The bin is 12 meters long, 512 meters wide, and 612 meters tall.



What is the volume of the recycling bin?




3534 m³

360 m³

429 m³

51834 m³

Answers

Right rectangular prism is nothing but cuboid.

If l is the length of a rectangular prism, w, its width and h, its height, then the volume of the rectangular prism is V = lwh.

It is given that the length of the recycling bin is 12 meters, its width is 512 meters and height is 612 meters.

Therefore, volume = lwh

= 12 × 512 × 612 cubic meters

= 3760128 cubic meters.

Hence, volume of the recycling bin is 3760128 [tex]m^{3}[/tex].

12 x 5 1/2 x 6 1/2 = 429 cm³

Brainliest please!

one-half of a number increased by 16 is 4 less than two-thirds of the number what is the number.

Answers

We need to create an equation for this.   Let x be the number we want to find. Then 1/2x  + 16 = 2/3x - 4   Multiplying both sides by the common denominator 6, we have   3x + 96 = 4x - 24 x = 120   Inserting 120 into the equation to check, we have 1/2 (120) + 16 = 2/3 (120) - 4 76 = 76

Ryan gave seven of his model cars to a friend then he bought six more cars now Ryan has 13 cars how many did Ryan start with

Answers

Ryan started out 14 cars.

Data;

Number of cars bought = 6Total numbers of cars now = 13Number of cars he started with = ?

Word Problem

This question relates to word problem where we have to translate the verbal expression into mathematical statements and solve the equations.

Let the numbers of cars he started with = x

[tex]x - 7 + 6 = 13\\x - 1 = 13\\x = 13 + 1\\x = 14[/tex]

From the calculations above, Ryan started out with 14 cars.

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Final answer:

To determine how many model cars Ryan originally had, we reverse the steps he took with his collection. After calculating, it's clear that Ryan initially had 14 model cars.

Explanation:

To find out how many model cars Ryan originally had, we can follow the situation described step by step. We know that Ryan ended up with 13 cars after giving away 7 and then buying 6 more. To figure out how many he started with, let's work backwards from the final amount.

Ryan ended with 13 cars.Before buying 6 more, he had 13 - 6 = 7 cars.Since he gave 7 away to reach that earlier amount, he must have had 7 + 7 = 14 cars originally.

Therefore, Ryan originally started with 14 model cars.

?? Graduation soon help me please, I’ve gotten lazy

Answers

B, parallel lines run the same direction next to each other.
The answer is B.
Parallel lines are lines that never intersect

which is the graph of the sequence defined by the function f(x+1)=3/5 f(x) when the first term in the sequence in 375?

Answers

Answer:

The first graph is of the sequence defined by the given function.

Step-by-step explanation:

Given the graph of sequence defined by the function

[tex]f(x+1)=\frac{3}{5}f(x)[/tex]

when the first term is in the sequence is 375 i.e f(1)=375

[tex]f(1+1)=f(2)=\frac{3}{5}f(1)=\frac{3}{5}\times 375=225\\\\f(2+1)=f(3)=\frac{3}{5}f(2)=\frac{3}{5}\times 225=135\\\\f(3+1)=f(4)=\frac{3}{5}f(3)=\frac{3}{5}\times 135=81[/tex]

Hence, in coordinate points becomes

(1,375), (2,225), (3,135), (4,81)

The first graph is of the sequence defined by the given function.

one hundred draws are made at random with replacement from the box 1, 2, 3, 4, 5, 6.
a) if the sum of the draws is 321, what is their average
b) if the average of the draws is 3.78, what is the sum?
c) estimate the chance that the average of the draws is between 3 and 4

Answers

Final answer:

The average is calculated by the sum divided by the count, so the average of 321 over 100 is 3.21. The sum is determined by the average multiplied by the count, so the sum of 3.78 times 100 is 378. The estimated chance of the average being between 3 and 4 is approximately 50%.

Explanation:

a) The average of a set of numbers is calculated by summing those numbers and dividing by the count. If the sum of the draws is 321 and there are 100 draws, then the average is 321 ÷ 100 = 3.21.

b) If the average of the draws is 3.78 and there are 100 draws, then the sum of the draws is 3.78 * 100 = 378.

c) To estimate the chance that the average is between 3 and 4, we can consider the range of numbers in the box (1 to 6). Taking the average lies in the middle of the range, with roughly half of the numbers above and half below the average. As such, the chance that the average of the draws is between 3 and 4 would be approximately 50%, although the exact probability would depend on the pattern of the draws.

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The length of the minute hand is 200% of the length of the hour hand.

In 1 hour, how much farther does the tip of the minute hand move than the tip of the hour hand? Round your answer to the nearest hundredth.

(The length of the hour hand is 20mm)

Answers

230[tex] \pi [/tex]/6

This is because each circumference is equal to 2[tex] \pi [/tex]r. So the distance the minute hand would travel would be 40[tex] \pi [/tex]. Then the minute hand would have a circumference of 20[tex] \pi [/tex]. However, you would have to divide that by 12 since it only traveled 1/12th of the distance around. 

When you subtract the hour hand's distance from minute hand's distance, you get the answer above. 

The center on a target has a diameter of 5 inches. The whole target has a diameter of 25 inches. The center of the target takes up ____% of the whole target

Answers

4%

To find the percentage, first find the area of both circles. The area formula is [tex] \pi r^{2} [/tex] . After finding the area of the center of the target (19.625) and the area of the large target (490.625), set up a percent proportion to determine the percentage that the center takes up: 

[tex] \frac{is}{of} = \frac{percent}{100} [/tex]


[tex] \frac{19.625}{490.625} = \frac{percent}{100} [/tex]


Cross multiplying and dividing by 490.625 will give a total of 4%.



The graph of a function is a line that passes through the points (1,4), (3,8), and (6,y). What is the value of y?

Answers

Hello there!

There are multiple ways to do this but lets find the equation of the line that passes through those points using the first two points.

First let's find the slope of the line...
(1,4) and (3,8)
(y₂-y₁)/(x₂-x₁)
8-4/3-1
4/2
2

The slope is 2. Now we need to plug in 2 and a point to point-slope form. Choose the point (1,4)
y-y₁=m(x-x₁)
y-4=2(x-1)

Let's put this into slope intercept form...
y-4=2(x-1)
y-4=2x-2
y=2x+2

Now we can plug in (6,y) into the equation. Plug in 6 for x to find y...
y=2(6)+2
y=12+2
y=14

So we have (6,14) as our answer!

I really hope this helps!
Best wishes:)


The value of y according to the given points is; y = 14

Slope of linear functions;

From the first two coordinates; (1,4) and (3,8)

The slope of the line is;.

m = (8-4)/(3-1)

m = 4/2

m = 2

Therefore; similarly;

m = 2 = (y-8)/(6-3)

2 = y-8/3

6 = y -8

Therefore, y = 6+ 8 = 14.

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4a - 4( 15a - 2) - 8

Answers

Hello!

The problem to solve: 4a - 4(15a - 2) - 8

The first thing to do is to apply the Distributive Property, which is: a(b + c) = ab + ac.

Here we have: -4(15a - 2). We must multiply -4 by 15a and -2. Let's do it.

4a - 4(15a - 2) - 8
4a - 60a + 8 - 8

Now we can go ahead and combine like terms; add the constants and add the a-terms. 4a minus 60a is equal to negative 56a. 8 minus 8 is zero, so the 8's cancel out, and we're left with:

-56a

That's your answer! I hope this helps you. (:
 Hey there!

In order to simplify this expression (notice how it's an expression and not an equation because it's not set equal to something) we can use addition and subtraction, and the distributive property which is defined as:

a(b+c) = ab + ac

Using this property, we can simplify this expression to:

4a - 60a + 8 - 8

Notice how -4(-2) was positive 8.

Simplify "a" terms:

-56a + 8 - 8

Since it's +8 - 8, the 8's cancel out.

Therefore, we just have -56a.

Hope this helps!


A bicyclist heads east at 10km/h. After she has traveled 24.2 kilometers, another cyclist sets out in the same direction going 30km/h. About how long will it take the second cyclist to catch up to the first cyclist?

Answers

We know that the first cyclist has traveled 24.2 km at a speed of 10 km/h. Lets use the equation [tex]time= \frac{distance}{speed} [/tex] to find the time of the first cyclist:
[tex]t= \frac{24.2}{10} [/tex]
[tex]t=2.42[/tex]
So, we know that she has traveled for 2.42 hours.
 
We also know that after she has traveled for 2.42 hours another cyclist sets out in the same direction, so if [tex]t[/tex] represents the time of our first cyclist, the time of our second cyclist will be [tex]t-2.42[/tex].

Now we are going to use the equation [tex]distance=(speed)(time)[/tex] to relate the speeds and times of the two cyclist:
For the first one:
[tex]distance=10t[/tex] equation (1)
For the second one:
[tex]distance=30(t-2.42)[/tex] equation (2)

Replace (1) in (2)
[tex]10t=30(t-2.42)[/tex]
The only thing left now is solve for [tex]t[/tex]:
[tex]10t=30t-72.6[/tex]
[tex]-20t=-72.6[/tex]
[tex]t= \frac{-72.6}{-20} [/tex]
[tex]t=3.63[/tex]

We can conclude that the second cyclist will catch up the first cyclist after 3.63 hours.


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