Question

Can someone not tell me the answer but walk me through this because I don't get what this question is asking.

Which unit rate is equivalent to 15 miles per gallon?

thirty miles over three gallons
three gallons over thirty miles
four gallons over sixty miles
sixty miles over four gallons

Answer 1

Explanation:

It is asking you what is equal if 1g= 15miles.

If 1g=15 miles,

then 2g=30 miles,

3g=45miles,

and etc.

Each gallon can drive for 15 miles, so multiplying the number of gallons by 15 will tell you how many miles that person can drive.

Ex. 1x15=15 miles,

2x15=30 miles

3x15= 45 miles

Hope this helps!

Answer 2

sixty miles over four gallons

Explanation:

The “over” word means divide, so let’s change all of these choices into expressions and evaluate them:

thirty miles over three gallons -> 30 mi/3 gal = 10 mi/gal

three gallons over thirty miles -> 3 gal/30mi = 1 gal/10 mi = 0.1 gal/mi (because it is asking for unit rate)

four gallons over sixty miles -> 4 gal/60 mi = 15 gal/mi

sixty miles over four gallons -> 60 mi/4 gal = 15 mi/gal

The problem is asking for which unit rate is equivalent to 15 mi/gal. We see that this fits the last choice (the value and the units). Therefore, the last choice is our answer.

I hope this helps! :)