All categories

3 years ago

Kevin can travel 22 1/2 miles in 1/3 hour. What is his average speed in miles per hour? A.65 mph B.65.7 mph C.68 mph D.70 mph

Mathematics

1 answer:

mojhsa [17]3 years ago

7 0

To find the answer, multiply 22 1/2 by 3.

22 1/2 x 3 = 67 1/2

This can round up to 68

The answer is C. 68 mph

If you have any further questions feel free to ask.

Hope this helps.

You might be interested in

Can someone answer this ITS DUE TOMORROW

zaharov [31]

Answer:

a-x

b-/

Step-by-step explanation:

64/4x4=64

625x25/25=625

3 0

3 years ago

I need to find the equations for these solutions

wlad13 [49]

Answer:

hope these answers helps u out

Step-by-step explanation:

PLZZ MARK ME AS BRAINLIEST

4 0

2 years ago

Read 2 more answers

A study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving (the Wall Street Journal, May

Strike441 [17]

The probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

<h3>How to determine the probability?</h3>

The given parameters are:

Sample size, n = 100
Population proportion, p = 82%

Start by calculating the mean:

$\mu = np$

$\mu = 100 * 82\%$

$\mu = 82$

Calculate the standard deviation:

$\sigma = \sqrt{\mu(1 - p)$

$\sigma = \sqrt{82 * (1 - 82\%)$

$\sigma = 3.84$

Within ± 0.02 of the population proportion are:

$x_{min} = 82 * (1 - 0.02) = 80.38$

$x_{max} = 82 * (1 + 0.02) = 83.64$

Calculate the z-scores at these points using:

$z = \frac{x - \mu}{\sigma}$

So, we have:

$z_1 = \frac{80.36 - 82}{3.84} = -0.43$

$z_2 = \frac{83.64 - 82}{3.84} = 0.43$

The probability is then represented as:

P(x ± 0.02) = P(-0.43 < z < 0.43)

Using the z table of probabilities, we have:

P(x ± 0.02) = 0.3328

Hence, the probability that the sample proportion is within ± 0.02 of the population proportion is 0.3328

Read more about probability at:

brainly.com/question/25870256

#SPJ1

4 0

2 years ago

Mr. Townsend needs to make 13 pairs of butterfly wings for costumes for a play. Each pair of wings is made with ¾ yard of fabric

EastWind [94]

you will need 9 and 3/4 for the 13 pairs of butterfly wings. if you were doing that, the total price would be $78. if you needed to have a whole number for yards, you would round up to 10 and the total price would be $80

4 0

3 years ago

Someone help pls, its urgent! ASAP!!! (Geometry)<br> “Complete the proofs”

Orlov [11]

<u>Question 11</u>

1) $\overline{BA} \cong \overline{FA}$ , $\angle 1 \cong \angle 2$ (given)

2) $\angle A \cong \angle A$ (reflexive property)

3) $\triangle AEB \cong \triangle ACF$ (ASA)

4) $\overline{AC} \cong \overline{AE}$ (CPCTC)

<u>Question 12</u>

1) Isosceles $\triangle ACD$ with $\overline{AC} \cong \overline{AD}$ , $\overline{BC} \cong \overline{ED}$ (given)

2) $\angle ACD \cong \angle ADC$ (angles opposite congruent sides in a triangle are congruent)

3) $\angle ACB$ and $\angle ACD$ are supplementary. $\angle ADC$ and $\angle ADE$ are supplementary (angles that form a linear pair are supplementary)