Question

You walk an average of 3.2 miles per hour on the way to school and at an average of 4 miles per hour on the way home the total walking time is 18 minutes how far away is the school Round your answer to the nearest hundredth of a mile

Answer 1

The answer to this question is:
You walk an average of 3.2 miles per hour on the way to school and at an average of 4 miles per hour on the way home the total walking time is 18 minutes how far away is the school Round your answer to the nearest hundredth of a mile
.53 mi 
.133 hrs

Hope This Helped, Markadoodle
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Answer 2

Answer:

0.53 miles

Step-by-step explanation:

Given: You walk an average of 3.2 miles per hour on the way to school and at an average of 4 miles per hour on the way home the total walking time is 18 minutes.

To Find: how far away is the school.

Solution:

Average walking speed on the way to school =$3.2\text$ ${mph}$

Average walking speed on the way to home =$4\text$ ${mph}$

let total distance from home to school be = $\text{D}$

Distance from home to school = distance from school to home

time taken from home to school = $\frac{\text{D}}{3.2}$ $\text{hours}$

time taken from school to home = $\frac{\text{D}}{4}$ $\text{hours}$

Total time taken = 18 minutes = $\frac{18}{60}\text{hours}$

$\frac{\text{D}}{3.2}$ $\text{hours}$+ $\frac{\text{D}}{4}$ $\text{hours}$= $\frac{18}{60}\text{hours}$

$\text{D}(\frac{1}{3.2}+\frac{1}{4})=\frac{18}{60}$

$\text{D}\frac{9}{16}=\frac{18}{60}$

$\text{D}=\frac{32}{60}$ $\text{miles}$

$\text{D}=0.53$ $\text{miles}$

The school is $0.53$ $\text{miles}$ from home