help pls!!!!!!!!!!! i don't know how to attempt

Jen's speed was 1/25 miles per minute or 2.4 miles per hour. This was found by dividing the distance travelled by the time it took.

To find Jen's speed, we need to divide the distance she rode by the time it took her. In this case, Jen rode 1/5 of a mile in 5 minutes. To get her speed in miles per minute, we perform the division:

1/5 mile ÷ 5 minutes = 1/25 miles per minute

This means that Jen's speed was 1/25 miles per minute. You could also convert this to miles per hour if you prefer, by multiplying the result by 60 (since there are 60 minutes in an hour). In that case:

1/25 miles per minute x 60 minutes/hour = 2.4 miles/hour.

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Jen's speed was 1/25 miles per minute, calculated by dividing the distance traveled, 1/5 mile, by the time taken, 5 minutes.

To determine Jen's speed, we would divide the distance she traveled by the time it took her to get there. Jen rode her bike for 1/5 of a mile, and it took her 5 minutes. To find her speed in miles per minute, we perform the following calculation:

Speed = Distance ÷ Time

Speed = (1/5) mile ÷ 5 minutes = 1/5 ÷ 1/5 = 1/25 miles per minute.

We don't need to convert the units since we are asked to provide the answer as a proper fraction. Therefore, Jen's speed was 1/25 miles per minute.

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Answer:

Step-by-step explanation:

Confidence interval is written as

Sample proportion ± margin of error

Margin of error = z × √pq/n

Where

z represents the z score corresponding to the confidence level

p = sample proportion. It also means probability of success

q = probability of failure

q = 1 - p

p = x/n

Where

n represents the number of samples

x represents the number of success

From the information given,

n = 200

x = 118

p = 118/200 = 0.59

q = 1 - 0.59 = 0.41

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.98 = 0.02

α/2 = 0.02/2 = 0.01

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.01 = 0.9

The z score corresponding to the area on the z table is 2.326. Thus, confidence level of 98% is 2.326

Therefore, the 98% confidence interval is

0.59 ± 2.326√(0.59)(0.41)/200

= 0.59 ± 0.08

The lower boundary is

0.59 - 0.08 = 0.51

The upper boundary is

0.59 + 0.08 = 0.67

The correct option is

B. We are 98​% confident that the true proportion of all students receiving financial aid is between 0. 51 and 0. 67

Answer:

3^-2 = 1/3^2 = 1/9

Step-by-step explanation:

3^4 * 3^-6

Using the properties of exponents

We know that a^b * a^c = a^(b+c)

3^4 * 3^-6 = 3^-2

If we only want positive exponents

We know that a^-b = 1/a^b

3^-2 = 1/3^2  = 1/9

We can also look at it

The negative exponent puts the 3's in the denominator

3*3*3*3 * 1/ (3*3*3*3*3*3)

Canceling

1/ (3*3)

1/9

Since all sectors have the same area, the spinner is equaly likely to land on each of them. There are:

Obviously, this implies that there are 11 sectors in total.

So, the spinner will land on a certain color with probability

[tex]p=\dfrac{\text{\# of sectors for that color}}{\text{11}}[/tex]

Use this formula to deduce the probability of green.

Finally, you can multiply the probability of red by 11 to get the expected number of reds in 11 spins.

Answer:

The answer to your question is 6x

Step-by-step explanation:

Data

f(x) = 3x

g(x) = 2x

(g°f)(x) = ?

Process

1.- To find (g°f)(x) substitute the value of f(x) in g(x) and simplify

-Substitution

(g°f)(x) = 2(3x)

-Simplification

(g°f)(x) = 6x

The third choice is correct

Answer:

The answer is : 73.3% (to 1 decimal place)

Step-by-step explanation:

The question is asking us to convert the proportion of a certain amount into percentage, and this is done as shown below:

vacation cost = $2252

amount charged = $1650

%of vacation cost that was charged = X%

∴ X% of 2252 = 1650

[tex]\frac{X}{100}[/tex] × 2252 = 1652

[tex]\frac{2252X}{100} =1650[/tex]

2252X = 165000 (dividing both sides by 2252)

[tex]\frac{2252X}{2252}=\frac{165000}{2252}[/tex]

∴ X = 165000 ÷ 2252

X = 73.3%

Answer:

to draw a box plot? The median, mean and standard deviation. The minimum, maximum, median, first and third quartiles. The median and interquartile range.

Step-by-step explanation:

Answer:

C Option is the right one. (•‿•)(•‿•)(•‿•)(•‿•)

Answer:

Its B

Step-by-step explanation:

Distribute and do not forget the minus in the middle and the 4 is negative

Answer:

mrs smith drove 50 miles and mr stein drove 50 mile

Step-by-step explanation:

In order to confirm Andrea's claim that 20% of U.S. states have populations of 10 million or more, we'd need to refer to updated population census data. The number of states that comply to this number would validate or invalidate her claim.

To determine whether Andrea's claim that 20% of the states have populations of at least 10 million people is correct, we would need to refer to updated census data. As of the most recent U.S. census, there are 50 states in the United States. If 20% of them had populations of at least 10 million, that would mean that 10 states meet this criteria. Checking the census data, we can see whether this number is accurate or not and thus confirm or deny Andrea's claim.

For example, if only 8 states had a population of over 10 million, Andrea's claim would be incorrect. On the other hand, if 15 states had a population of over 10 million, her claim would also be incorrect, but it would be an underestimation rather than an overestimation. Therefore, without specific data, we cannot unequivocally say whether Andrea's claim is correct.

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Out of the two units, ounce is smaller than pound and both have traditionally been used for different purposes. Whereas ounces are used to measure precious metals and spices as they are required in smaller quantities, pounds are used to measure fruits and vegetables, and interestingly, mass of people also.

Answer:

y=35x+20

Step-by-step explanation:

The equation for the given pattern of values is y = 85x - 80, found by determining the slope and y-intercept from the provided data.

The task is to find an equation for the pattern given by x = 1, 2, 3, 4, 5, and y = 5, 90, 125, 160, 195, which we can determine by using the equation for a line, y=mx+b.

To find m, the slope, we calculate the change in y divided by the change in x between two data points. Based on the given numbers, m = (90-5)/(2-1) = 85.

Once we have m, we substitute a known point (1, 5) into y=mx+b and solve for b, giving b=5- 85*1 = -80. So, our equation for the given pattern is y = 85x - 80.

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Answer:

She need to cut the string 19 times

Step-by-step explanation:

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19

19 cut.

Jill needs to make 19 cuts in the piece of string to have 20 smaller pieces, as each cut adds one additional piece and the first piece does not require a cut.

To determine how many times Jill needs to cut the string to get 20 smaller pieces, we need to understand the relation between cuts and pieces. Imagine having a single piece of string. Once you make a single cut, you now have two pieces.

Therefore, the number of cuts is always one less than the number of pieces you want to have because the first piece does not require a cut.

If Jill wants 20 pieces of string, she will need to make 19 cuts. This is because every cut adds one additional piece to the total count. After the first cut, there are two pieces. After the second cut, assuming she cuts one of those two pieces, there are three pieces, and so on. When she makes the nineteenth cut, she will have twenty pieces.

Answer:

The parabola would stretch both vertically and horizontally by a factor of 2.

Step-by-step explanation:

I just took the quiz on Edg.

Answer:

63

Step-by-step explanation:

3x3= 9x7= 63

Answer:

r=1

Step-by-step explanation:

Because the table has the same input and output, the constant of proportionality is 1

The conclusions that can be drawn are 3, two of a direct type and the other of an indirect type.

The direct ones are the values. Team A has an average of 68 points per game, which means that it has a good point average and, in the same way, team B, which has an average of 67, which is still a good point average per game.

The hint is the comparison of both teams, and that is that team A is one point above team B, which in terms of points per game makes them better.

Answer: Third option is correct.

Step-by-step explanation:

Since we have given that

Total watches in an inventory = 1000

Number of shipments sent out = 168, 231, 411

So, Remaining inventory of watches would be :

[tex]1000-(168+231+411)\\\\=1000-810\\\\=190[/tex]

New receipts = 21, 145 and 11

So, Number of watches on hand becomes :

[tex]190+(21+145+11)\\\\=367[/tex]

Hence, Third option is correct.

Answer:

Autonomous Expenditure ; Equilibrium expenditure ; Real GDP

Step-by-step explanation:

A multiplier is the amount by which a change in any component of​ Autonomous Expenditure is magnified or multiplied to determine the change in​ Equilibrium Expenditure and​ Real GDP that it generates.

Multiplier = Change in Equilibrium Expenditure of Real GDP

                      Change in autonomous expenditures

                  (government expenditure, autonomous taxes)

Answer:

A. Rashid solved the problem correctly.

Step-by-step explanation:

The missing option is given as:

Which is the most accurate description of Rashid’s work?

A. Rashid solved the problem correctly.

B. Rashid multiplied the dividend by the divisor instead of finding the reciprocal.

C. Rashid multiplied the denominators instead of finding a common denominator.

D. Rashid multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor.

Rashid solve the problem correctly as he gave the answer in lowest form.

[tex]\frac{3}{4}[/tex] ÷ [tex]9[/tex]

[tex]\frac{3}{4} *\frac{1}{9} \\\frac{3 * 1}{4 * 9} \\\frac{3}{36} =\frac{1}{12}[/tex]

So, Rashid final answer is correct 3/36 or 1/12

Answer:

Rashid Missed This Step: [tex]\dfrac{3}{4 X 9}[/tex]

Step-by-step explanation:

Rashid solved a fraction division problem using the rule "multiply by the reciprocal."

[tex]\dfrac{3}{4} \div 9\\ =\dfrac{3}{4} X \dfrac{1}{9}\\=\dfrac{3}{36}\\=\dfrac{1}{12}[/tex]

Rashid misses a step which will now be shown below:

[tex]\dfrac{3}{4} \div 9 =\dfrac{3}{4} X \dfrac{1}{9}\\=\dfrac{3}{4 X 9}\\=\dfrac{3}{36}\\=\dfrac{1}{12}[/tex]

Answer:

5.5 seconds

Step-by-step explanation:

The function that gives the height of the object after t seconds falling is:

h = -16t^2 + 484.

To find the time when the object reaches the ground, we just need to use the value of h = 0 in the equation, and then find the value of t:

0 = -16t^2 + 484.

16t^2 = 484

t^2 = 30.25

t = 5.5 seconds

So the object will reach the ground after 5.5 seconds

Answer:

5.5 sec

Step-by-step explanation:

The height h of the object after t seconds is given by the equation

h =- 16 t²+ 484

The height would be zero when the object hits the ground. therefore equating the above equation to zero

0 = - 16 t²+ 484 (solving for t)

16 t²= 484

t² = 484/16

t²= 30.25

taking square root on B.S

t= 5.5 sec

Answer:

Step-by-step explanation:

C=pi (d)      circumference = pi (3.14) times the diameter which is 10, because the radius 5 and diameter is twice the radius..........

you can also use Formula C=2pi r which will give you the same answer.

31.4 cm for orange circle

the diameter (all the way through the center of the circle) for blue circle would be 20

C=pi (d)   3.14 times 20=  62.8 cm for blue circle

The circumferences of both circles to the nearest tenth is 31.4 cm for the orange circle and 62.8 cm for the blue circle.

Since the diameter is 10 so the radius is 5

Now for the orange, it should be

= 2(3.14) (5)

= 31.4 cm

And, for the blue circle, it should be

= 2(3.14) (20)

= 62.8

Hence, The circumferences of both circles to the nearest tenth is 31.4 cm for the orange circle and 62.8 cm for the blue circle.

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Answer:

The lengths of each side are:

a = 4 cm.

b = 7 cm.

c = 8 cm.                

Step-by-step explanation:

To solve this, we will write the equation out of the word problem given in the question, and this is done as follows;

sides of the triangle from smallest to longest = a, b, c

perimeter of the triangle = a + b + c = 19 cm - - - - - - - - - (1)

Length of the longest side is twice that of shortest side; c = 2a - - - - - - (2)

length of longest side is equal to 3 cm less than the sum of the lengths of the other two sides; c = (a + b) - 3  - - - - - - - (3)

therefore:

a + b + c = 19 - - - - - (1)

c = 2a - - - - - - - - - - (2)

c = (a + b) - 3 - - - - - - - - (3)

putting equation (2) into equation (1)

a + b + (2a) = 19

3a + b = 19 - - - - - - (4)

Substituting for c in equation (3) using equation (2)

c = (a + b) - 3 - - - - - - - - (3)  (replacing c with 2a from equation 2)

2a = a + b - 3 (making b the subject)

2a - a = b - 3

∴ b = 2a - a + 3

b = a + 3 - - - - - - -(5)

substituting for the value of b in equation (4), using equation 5

3a + b = 19 - - - - - - (4)  ( replacing b with equation 5)

3a + (a + 3) = 19

4a + 3 = 19

4a = 19 - 3 = 16

∴ a = 16 ÷ 4 = 4

since, we know 'a', calculating for b, using equation 5;

b = a + 3 - - - - - - -(5) (where a = 4)

∴ b = 4 + 3 = 7

Finally calculating for c, using equation 2

c = 2a - - - - - - - (2) (where a = 4)

c = 2 × 4 = 8

Therefore:

a = 4; b = 7 ; c = 8

Answer:

Y=5

Step-by-step explanation:

If x = 8 then y = 5

Plug x into the equation and solve

 5x - 2y = 30 <- Rewrite

5(8) - 2y = 30 <- Plug x in

 40 - 2y = 30 <- Simplify

-40          -40 <- Get y alone

        -2y = -10 <- Simplify

            y = 5 <- Divide both sides by -2 to get y

Answer:

Division, you can divide the total amount of total milliliters buy the number of milliliters dropped every minute. 1850/74= 25. So m= 25. Sarah left the room for 25 minutes

Step-by-step explanation:

pls mark me brainliest

Answer:

B likely

Step-by-step explanation:

the probability is 1/2 because there are 12 coins and 6 of them are nickels

Answer:

There are 12 cookies (c). It takes 2 hours (h) to bake 1 cookie. How long will it take to bake 12 cookies?