Question

Mrs. Walters drove 360 miles on 25 gallons of gas. Mr. Walter drove 480 miles on 32 gallons of gas. SHOW YOUR WORK.

Answer 1

360 miles divided by 25 gallons is = 14.4 miles per gallon for Mrs. Walters.
360 miles divided by 32 gallons is = 11.25 miles per gallon for Mr. Walter.

Mrs. Walters gets the better gas mileage of 14.4 mpg.

Answer 2

Answer

Unit rate defined as the rate are expressed as a quantity 1 such as 3 miles per hour or 4 meter per seconds.

As per the statement:

(a)

Mrs. Walters drove 360 miles on 25 gallons of gas.

By definition of unit rate:

$\text{Unit rate per gallons} = \frac{360}{25}$

Simplify:

$\text{Unit rate per gallons} = 14.4 \text{miles}$

Therefore mileage per gallons for Mrs Walter's car is 14.4 miles per gallons

(b)

Mr. Walter drove 480 miles on 32 gallons of gas.

By definition of unit rate:

$\text{Unit rate per gallons} = \frac{480}{32}$

Simplify:

$\text{Unit rate per gallons} = 15 \text{miles}$

therefore, mileage per gallons for Mr Walter's car is 15 miles per gallons.

(c)

From the above data you can see that:

15 miles per gallon > 14.4 miles per gallons

⇒ Mr Walter's car is getting the better mileage per gallon