Which ordered pair is the best estimate for the solution of the system of equations? y = −1/5x + 1 y = x + 4

Answers

Answer 1
Given system of equation:
y=-1/5x +1 Equation 1
y=x+4 Equation 2
Substitute value of y in equation 2.
x+4=-1/5x+1
Multiply both sides by 5.
5x+20=-x+5
Add x to both sides
6x+20=5
Subtract 20 from both sides
6x=-15
x=-15/6
x=-5/2
Now substitute value of x in equation 1.
y=-1/5 ( -5/2) +1
y=1/2+1
y=3/2

Solution is (x,y)= (-5/2 , 3/2)
Answer 2

Final answer:

The solution to the system of equations y = -1/5x + 1 and y = x + 4 is found by setting the equations equal to each other, solving for x, and then substituting back to find y. The solution is the ordered pair (-5, -1).

Explanation:

The student is asking to find the ordered pair that represents the best estimate for the solution to a system of linear equations. The given system of equations is: y = −1/5x + 1 and y = x + 4. To find the solution, we need to determine where the two lines intersect, which will give us the coordinates (x, y) of the solution.

To find the intersection, we can set the two equations equal to each other since they both equal y: −1/5x + 1 = x + 4. Then, we would solve for x:

Add 1/5x to both sides to get 1 = 6/5x + 4

Subtract 4 from both sides to get −3 = 6/5x

Multiply both sides by 5/6 to get x = −3 × (5/6)

Which simplifies to x = −5

Now we substitute x back into either of the original equations to find y. For instance, using the second equation y = x + 4, we find that:

y = (−5) + 4 = −1

Therefore, the ordered pair that is the solution to the system of equations is (-5, -1).


Related Questions

negative financial information (excluding bankruptcy) can stay on your credit report for:

Answers

It depends on the type of negative financial information that is on your credit report. For example, an account that has undergone the collections or delinquency process can stay on your credit report for up to 7 years. Car loans may stay on your credit report for up to 10 years. However, it really depends on the type of account, and the account company. Some accounts will report positive payments after collections within 30 days. Others may take longer. 

There were 25 words on a recent vocabulary test in English class, and Owen got four words wrong. What percent did he get wrong?

Answers

16 % ;  4 / 25 =  16 / 100

Rewrite 0.434343... as a fraction

Answers

Final answer:

The repeating decimal 0.434343... can be rewritten as a fraction by defining the decimal as a variable, manipulating the equation, and finally isolating the variable to find that the fraction form of 0.434343... is 43/99.

Explanation:

To rewrite the repeating decimal 0.434343... as a fraction, we first define the repeating decimal as a variable, let's call it x = 0.434343.... Then, to isolate the repeating section, we multiply x by 100, given the two-digit repeat, which gives us 100x = 43.434343.... By subtracting the original equation from this new one, we get: 99x = 43, because 100x - x = 43.434343... - 0.434343... simplifies to 99x = 43. Dividing both sides by 99 gives us x = 43/99, which is the fraction form of the repeating decimal.

To rewrite the repeating decimal 0.434343... as a fraction, we first denote it as x. Next, we can subtract the non-repeating part from the repeating part to get a new number, y. Then, we can express x and y as fractions and solve for the repeating fraction part.

what is the approximate distance across a camel's snout.

Answers

around 4 1/2 inches..

4 1/2in gdhsiaidjdhdus7wiqiwisj

What is the value of the x in this figure?

Answers

I believe its 45 because a right angle equals 90 degrees and if you multiply 45 and 2, it'll give you a right angle(90 degrees)
x=45°
180÷2=90
90÷2
=45

PLEASE HELP!!!
If g(x) = 2x4 + 3x3 - x2, find g(-1).
A) -42
B) -12
C) -10
D) -2

Answers

Answer:

The value of g(-1) is -2

Step-by-step explanation:

[tex]g(x) = 2x^4 + 3x^3 - x^2[/tex]

Now we find g(-1)

To find g(-1) plug in -1 for x  in the given g(x) equation

Replace all x by -1

[tex]g(x) = 2x^4 + 3x^3 - x^2[/tex]

[tex]g(x) = 2(-1)^4 + 3(-1)^3 - (-1)^2[/tex]

[tex]g(x) = 2-3-1=-2[/tex]

The value of g(-1) is -2

Answer:

-2

Step-by-step explanation:

g(-1) = 2(-1)4 + 3(-1)3 - (-1)2 = 2(1) + 3(-1) - 1 = 2 - 3 - 1 = -2

Need help with number 13 please, thanks.

Answers

The answer is I) 103. So the temperature started at 101, then went up to 103. Going up is not negative. F and G are out of the picture, because they are negative. It is not H because the temp. is 103, not 101. It changed. I is your answer.
~Deceptiøn
I is the right answer.

What is the approximate volume of the cone?

Use 3.14 for π .


A. 1206 cm³

B. 2170 cm³

C. 3260 cm³

D. 6510 cm³

Answers

The formula is A 1,206. 
 
The approximate volume of the cone is 1206(A)

plz help me with this problem!!!! Thanks!

Answers

It’s 10 that’s the answer
The height of the overlapping area is 8 ft and the length is 10 ft, therefore we need to subtract 10×8= 80 ft of overlapping surface area

what fraction of 60 is 45?

Answers

Hi Ebiffy

What fraction of 60 is 45 ?

45 / 60 = (15 x 3) / (15 x 4) = 3 / 4

If three dozen cookies cost $9, what is the cost per cookie?

Answers

36/9
=$4 per cookie......
3 dozen = 36
9/36 (9 divided by 36) = .25

$0.25 per cookie

Of the following sets, which numbers in {0, 1, 2, 3, 4} make the inequality 7x + 3 < 17 true?

{0}

{0, 1}

{0, 1, 2}

{2, 3, 4}

Answers



the set that makes the inequality true is{0, 1,}

Hello,

The correct answer is B) {0, 1}

Hope this helps!!!! Happy Holidays!!!! (:

Fred makes 2.50 less per hour than Barney. Barney makes 15.75 per hour. How much does Fred make per hour?

1) $14.75

2) $15.00

3) $13.25

4) $12.75

Answers

The answer is C) $13.25
The answer is C 15.75-2.50

You select a marble without looking and then put it back. If you do this 6 times, what is the best prediction possible for the number of times you will pick a purple or a blue marble?

Answers

Final answer:

Without further information, we can say that the prediction of drawing a blue or purple marble in six attempts depends on the total number of marbles and the number of blue and purple marbles.
If half the marbles are blue or purple, there is a predicted average of three such draws in six attempts.

Explanation:

To predict how many times you could pick a purple or blue marble, we would need to first know the total number of marbles and the number of blue and purple marbles. This information isn't provided in the question. However, we can discuss this concept further. When you select a marble and put it back, the probabilities remain the same for each draw because the total number of marbles in the bag and the number of desirable marbles (blue or purple in this case) do not change.

For example, if a bag contains four blue marbles and three white marbles, and you draw one marble six times with replacement (meaning each time after drawing, you put the marble back into the bag), the probability of drawing a blue marble each time is 4/7, because there are four blue marbles and seven total marbles.

Therefore, the best prediction of the number of times you will draw a blue or purple marble in six tries depends on these individual probabilities. If we assume half the marbles are blue or purple, then on average, we would expect to draw a blue or purple marble about three times.

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Final answer:

The best prediction possible for the number of times you will pick a purple or a blue marble after 6 draws is 3.43 times.

Explanation:

To predict the number of times you will pick a purple or a blue marble, you need to determine the probability of picking a purple or a blue marble for each individual draw and then multiply that probability by the number of draws. In this case, the bag contains 4 blue marbles out of a total of 7 marbles.

Therefore, the probability of picking a blue marble on each draw is 4/7.

Since you are drawing 6 times, you can predict that you will pick a purple or a blue marble approximately (4/7) x 6 = 24/7 = 3.43 times.

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Name the angle below 4 different ways.
plz help and NO BS answers.

Answers

Angle 1
Angle BAC
Angle CAB
Angle A
They are BAC, CAB, ABC, and BCA

Hey guys! Could someone help me with this problem? I got the wrong answer! The answer is B, but I don’t know how to get it! Could you work it out and explain?! Thank you so much! God Bless!

Answers

When it says 'which has a greater rate of change' it is referring to 'what has a greater slope.' So, let's calculate each thing's slope:

Table:
I'm going to pick the easiest values to work with, so I'll pick the points (0, -2) and (1, -9/5) - I simplified the mixed fraction. So, here we go, the slope formula is:
[tex] m =\frac{y_2-y_1}{x_2-x_1} [/tex]
[tex]m = \frac{- \frac{9}{5} - (-2)}{1-0} = \frac{- \frac{9}{5} - ( -\frac{10}{5} )}{1-0}[/tex]
[tex] m = \frac{ \frac{1}{5} }{1} = \frac{1}{5} [/tex]

So, the table's slope is -1/5.

Graph
We can, again, pick two points. I'll pick the two given: (5, 0) and (0, -3).  Let's start off with the same formula:
[tex] m =\frac{y_2-y_1}{x_2-x_1} [/tex]
[tex]m = \frac{-3-0}{0-5} = \frac{3}{5} [/tex]

The graph's slope is 3/5.

Now, we just have to decide which is bigger: -1/5 or 3/5. So, clearly:
3/5 > -1/5

The 3/5 slope was the graph, hence it has the greater rate of change (that's why it's B). If anything doesn't make sense, feel free to DM me or ask!

between which two consecutive whole numbers is
[tex] \sqrt{46} [/tex]

Answers

You have to find which perfect square numbers are closest to 46. The list is 1, 4, 9, 16, 25, 36, 49, 64... we can stop there. 

46 falls between 36 and 49, which is 6 and 7 squared. So the answer is 6 and 7.

Walter pays $4 for each gallon, g, of gas for his lawn mower. He uses a gift card worth $5 to reduce the amount he owes for his purchase. How much money, m, will Walter owe if he buys 4 gallons of gas? Make a table using 2, 3, and 4 as values for g. Graph the ordered pairs, and then write an equation to solve the problem

Answers

hope this helps check a website calles math-way without the dash

m=4g+5 is the equation for money will Walter owe if he buys g gallons of gas

What is Expression?

An expression is combination of variables, numbers and operators.

Given that Walter pays $4 for each gallon, g, of gas for his lawn mower.

Walter uses a gift card worth $5 to reduce the amount he owes for his purchase.

We need to find the money, m, will Walter owe if he buys 4 gallons of gas.

m=4g+5

Now for 4 gallons we have to find the money.

m=16+5

m=21

Now for gallon =2

m=13

Now for gallon =3

m=17

Hence, m=4g+5 is the equation for money will Walter owe if he buys g gallons of gas

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I'll give brainliest if you show your work.
Mia’s work to find the slope of a trend line through the points (3, 10) and (35, 91) is shown below.
Mia's Work
Step 1: 3-35/ 10-91
Step 2: -32/ -81
Step 3: 32/ 81
What was the first error that Mia made?
Mia simplified incorrectly and made the slope positive.
Mia subtracted in the wrong order.
Mia switched the numerator and the denominator.
Mia used subtraction instead of addition.

Answers

Its A because as you know:Step One: Identify two points on the line.Step Two: Select one to be (x1, y1) and the other to be (x2, y2).Step Three: Use the slope equation to calculate slope.PLEASE MARK BRAINLIEST

Answer:

Mia switched the numerator and the denominator.

Step-by-step explanation:

The slope formula is given by:

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

Where we have two ordered pairs:

P1 = (x1, y1)

P2 = (x2, y2)

Given is : Mia’s work to find the slope of a trend line through the points (3, 10) and (35, 91)

Step 1: [tex]\frac{3-35}{10-91}[/tex]

If we compare the formula with Mia's step, we can see that she switched the numerator and the denominator.

Hence, the error made is : Mia switched the numerator and the denominator.

in the decimals chart, the memory cue for dividing by a whole number is "up." what does that mean?

Answers

Rounding up is a rule that is used, no matter what the value is. We round numbers up to get a better estimate for our answers. The memory cue for dividing by a whole number "up" just means that you will be bringing the decimal up.

Answer:

It means that you have to put the decimal point in the quotient exactly above the decimal point in the dividend.

Step-by-step explanation:

In the picture attached, the decimals chart is shown. There you can see where you have to put the decimal point in the quotient when you are dividing a decimal number by a whole number.

Fifteen students were surveyed to see whether they liked the color red or blue. There were three more students who preferred blue over red. Write and solve a system of equations to find how many students preferred blue and how many preferred red.

Answers

r=students who like color red
b=students who like color blue

r+b=15
b=r+3

then, replace the b in the first equation with the b in the second:
r+(r+3)=15
2r=12
r=6

6 students like red

r+b=15
6+b=15

b=9

6 students like red 
9 students like blue

jordan has a marble collection. 4/12 of the marbles are red. 2/4 are green. what fraction of her total marbles are red and green

Answers

2/4(3/3) = 6/12

6/12 + 4/12 = 10/12

10/12 or 5/6 is your answer

Hope this helps

#22. As you can see I tried to work it out, but to no avail.

Answers

The correct answer is (A) -2y - 2 for x in 3x - 2y = 10.

x + 2 = -2y

3x - 2y = 10

In order to find the second variable, we must take either x or y out of one of the equations. We can specifically exclude x by substituting the following in the expression:

From the first equation into the second, x = -2y - 2. With this change, x will no longer be present in the second equation, allowing us to determine the value of y. As a result, we must replace the phrase with:

For x in the equation, -2y - 2:

3x - 2y = 10

To acquire:

3(-2y - 2) - 2y = 10

To put it simply: -6y - 6y - 2y = 10

combining comparable phrases

-8y = 16

y = -2 after dividing both sides by -8.

Once y has been determined, we can add this result back into one of the original equations.

Therefore, the correct answer is (A) -2y - 2 for x in 3x - 2y = 10.

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Add the two expressions.

−6.3x+4 and 1.5x−6

Enter your answer, in simplified form, in the box.

please help fast 30 points!

Answers

(-6.3x + 4) + (1.5x - 6)

-6.3x + 1.5x = -4.8x
4 + (-6) = -2

-4.8x - 2 is your answer


the correct answer is -4.8x - 2

Dakota tiled a floor with tiles that look like this:




Here is her floor:



What is the length of? _________________


What is the length of ? ________________


What is the length of? _______________


What is the measure of ABC? ____________


What is the measure of CAB? ____________


What is the measure of ACB? _____________


What is the measure of BCE? _____________


What is the measure of CED? ______________


What is the total length of Dakota’s floor? _____________


What is the total width of Dakota’s floor? ____________

Answers

AB=8 in.
AC=6 in. 
BC=10 in.
<ABC=37 
<CAB=90
<ACB=53
<BCE=2*37=74
<CED=2*53=106
l=6*AB=6*8=48 in.
w=6*AC=6*6=36 in.


renee is making a scale diagram of her mp3 player. The length of her scale drawing is 8 inches, and the width is 14 inches. The actual length of the mp3 player is 4 centimeters, and the width is 7 centimeters.

Answers

Final answer:

To create a scale diagram, determine the ratio between the length and width of the scale drawing and the actual object.

Explanation:

To create a scale diagram, we need to determine the ratio between the length and width of the scale drawing and the actual object.

In this case, the length of the scale drawing is 8 inches and the actual length of the mp3 player is 4 centimeters.

So the length ratio is 8 inches / 4 centimeters = 2 inches / centimeter.

Similarly, the width ratio can be calculated as 14 inches / 7 centimeters = 2 inches / centimeter.

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Final answer:

In Renee's scale drawing of the mp3 player, every 1 cm of the actual mp3 player is represented by 5 cm in the scale drawing. This is calculated by comparing the actual length to the length on the drawing, converting the units to centimeters first. The scale should be consistent for both length and width.

Explanation:

The question describes a situation where Renee is making a scale diagram of her mp3 player. In this case, there is a comparison between the actual size of the mp3 player and it's representation on the scale drawing. Let's use the lengths as a basis for the scale.

The length of the actual mp3 player is 4 cm and the length on the scale is 8 inches. But, to make our comparison valid, we need to make sure that both measurements are in the same unit. Now, since 1 inch is approximately 2.54 cm, our 8 inches become 8 × 2.54 = 20.32 cm.

This means Renee's scale is roughly 5 to 1 (since 20.32 divided by 4 is about 5). Therefore, every 1 cm of the actual mp3 player is represented by 5 cm in the scale drawing.

We can follow the same process for the width and verify that the scale is consistent, which it should be, but in this case, it's not necessary because we've been given that the lengths and the widths have exactly the same proportions in both the drawing and the real object.

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a box of crackers has a volume of 48 cubic inches. what is the volume of a similar box that is smaller by a scale factor of 2/3

Answers

For this case what you need to know is that the original volume of the cookie box is:
 V = (w) * (l) * (h)
 Where,
 w: width
 l: long
 h: height.
 We have then:
 V = (w) * (l) * (h) = 48 in ^ 3
 The volume of a similar box is:
 V = (w * (2/3)) * (l * (2/3)) * (h * (2/3))
 We rewrite:
 V = ((w) * (l) * (h)) * ((2/3) * (2/3) * (2/3))
 V = (w) * (l) * (h) * ((2/3) ^ 3)
 V = 48 * ((2/3) ^ 3)
 V = 14.22222222 in ^ 3
 Answer:
 the volume of a similar box that is smaller by a scale factor of 2/3 is:
 V = 14.22222222 in ^ 3

Solve the linear system of equations using addition. Graph the equations to verify your solution. -4x=y+3

Answers

In standard form the answer would be y=-4x-3

Answer:

Step-by-step explanation:

given equation,

-4 x = y + 3

y = -4 x -3........................(1)

comparing equation 1 with

 y = m x + c

m = -4 and  c = -3

now using this we can easily plot the graph where c is the y-intercept and m is the slope of line .

so, the plot is shown in the graph attached below.

On the coordinate plane below, quadrilaterals TRAP and HELP are similar to eachother.
Use the Pythagorean theorem to determine the ratio between sides RA and EL.
A. 2:1
B.5:3
C. 3:2
D. 1:1

Answers

Since HP:PT is 1:2, then the ratio will be applied to all sides. From the picture you can conclude RA is made from 2 horizontal space and 4 vertical space, so EL would be made from 1 horizontal space and 2 vertical space.
Using Pythagorean theorem, the length of RA and LE would be:


RA^2= 4^2 + 2^2 = 16 +4
RA^2= 20
RA= √20

EL^2= 2^2 +1^2 = 4+1
EL^2= 5
EL= √5

RA:EL= √20/√5
RA:EL= (√4*√5)/√5
RA:EL=√4= 2

The ratio would be A. 2:1

Answer:

The ratio would be A. 2:1

Step-by-step explanation:

A hollow crystal ball is made of glass that is 3 centimeters thick. The ball has a radius to the outside surface of 8 centimeters. What is the approximate volume of glass used to make the ball? Use 3.14 for pi.

Answers

Answer:

The approximate volume of glass is equal to [tex]1,620.24\ cm^{3}[/tex]

Step-by-step explanation:

we know that

The volume of the sphere ( crystal ball) is equal to

[tex]V=\frac{4}{3}\pi r^{3}[/tex]

the approximate volume of glass is equal to

[tex]V=\frac{4}{3}\pi (rb^{3}-ra^{3})[/tex]

[tex]rb=8\ cm[/tex]

[tex]ra=(8-3)=5\ cm[/tex]

substitute

[tex]V=\frac{4}{3}(3.14)(8^{3}-5^{3})=1,620.24\ cm^{3}[/tex]

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