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3 years ago

11

Two runners, same time. Alan travels east at a uniform rate that is 2 mph faster than ed, who is traveling west. After two hours

, they are28 mi apart. Find ed's rate

1 answer:

True [87]3 years ago

5 0

Ed is going 12 miles per hour.

You might be interested in

This table shows temperatures in an Arctic city during

ioda

According to the temperature changes, it is found that:

On Tuesday, the temperature at Noon was of -28.5 ºF.

On Wednesday, the temperature at Midnight was of -5.5 ºF.

On Thursday, the change was of -11.8 ºF.

On Friday, the temperature at Noon was of -4.5 ºF.

<h3>What is the temperature change?</h3>

The temperature change during a period is given by the <u>temperature at the end of the period subtracted by the temperature at the start of the period</u>.

On Tuesday:

At the start of the period, the temperature was of -17.5 ºF.

The change was of -11 ºF.

Hence:

$-11 = T_N - T_M$

$-11 = T_N + 17.5$

$T_N = -28.5$

On Tuesday, the temperature at Noon was of -28.5 ºF.

On Wednesday:

At the end of the period, the temperature was of 10 ºF.

The change was of 15.5 ºF.

Hence:

$15.5 = 10 - T_M$

$T_M = -5.5$

On Wednesday, the temperature at Midnight was of -5.5 ºF.

On Thursday:

At the end of the period, the temperature was of -24 ºF.

At the start of the period, the temperature was of -12.2 ºF.

Hence:

$C = -24 - (-12.2) = -24 + 12.2 = -11.8$

On Thursday, the change was of -11.8 ºF.

On Friday:

At the start of the period, the temperature was of -21.8 ºF.

The change was of 17.3 ºF.

Hence:

$17.3 = T_N - T_M$

$17.3 = T_N + 21.8$

$T_M = -4.5$

On Friday, the temperature at Noon was of -4.5 ºF.

You can learn more about change at brainly.com/question/24313700

8 0

3 years ago

a plumber has a piece of pipe that is 2 meters long he needs to cut it into section of 10 centimeters long how many sections wil

ahrayia [7]

Since I can't post pictures in this answer, I will just tell you how to get the answer. For this question, you need to consider, how many centimeters go into 2 meters? Well, since 1 meter equals one hundred centimeters, 2 meters would equal 200 centimeters. And since we need to know how many 10 centimeter long sections there would be, then you need to divide 200 by 10. 200 divided by ten equals 20. So the answer would be 20 sections. The plumber is able to cut 20 sections. I hope that helped!

8 0

3 years ago

Read 2 more answers

Does anyone how to solve this sum? It’s urgent

Galina-37 [17]

The required value for the sum is 9580.

$\frac{10000}{(1+\frac{0.115}{4})^2}+68\frac{1-\frac{1}{(1+\frac{0.115}{4})^2}}{\frac{0.115}{4}}$

<h3>What is simplification?</h3>

Simplification in mathematics to solve the given condition on its operators.

$\frac{10000}{(1+\frac{0.115}{4})^2}+68\frac{1-\frac{1}{(1+\frac{0.115}{4})^2}}{\frac{0.115}{4}}$

= $\frac{10000}{1.028^2} +68*\frac{1-\frac{1}{1.028^2} }{\frac{0.115}{4} } \\9451+68*\frac{1-0.94}{\frac{0.115}{4} } \\\\9451+68*\frac{0.054}{\frac{0.115}{4} } \\\\\\9451+3.72{\frac{4}{0.115} } \\\\\\9451+129\\$

= 9580

The required solution is given as 9580.

Learn more about simplification here:
brainly.com/question/9218183

#SPJ1

4 0

2 years ago

PLEASE HELP ME! find the measure of each numbered angle. pls

zzz [600]

Answer: <em>∠1 = 37.5°; ∠2 = 37.5°; ∠3 = 133°.</em>

Step-by-step explanation:

<em>∠1 = ∠2 = (180° - 105°) ÷ 2 = 37.5°</em>

<em>∠3 = 180° - 23° - 24° = 133°</em>

3 0

3 years ago

CAN SOMEONE HELP PLEASE <br> m4A=42°, b=10, c= 12. What is the length of a to the nearest tenth?

kipiarov [429]

<u>Answer:</u>

a = 8.1

<u>Step-by-step explanation:</u>

Use the cosine rule:

$a = \sqrt{b^2 + c^2 -2 bc \space\ cosA }$

Substituting the values:

$a = \sqrt{10^2 + 12^2 -2(10)(12) \space\ cos 42 \textdegree\ }$

⇒ $a = \sqrt{4 \space\ cos 42\textdegree\ }$

⇒ $a = 8.1$

4 0

2 years ago