Question

The cost of a gallon of gas increased from $3.54 to $3.87 over the weekend. What is the percent increase for the cost of gas, rounded to the nearest whole percent?

Answer 1

9%

Explanation:

percent increase is calculated as

`(increase)/(original)` × 100%

increase = $3.87 - $3.54 = $0.33 , then

% increase =
`(0.33)/(3.54)` × 100% ≈ 9% ( to the nearest whole percent )

Answer 2

9 % (rounded to the nearest whole percent)

Explanation:

the amount of increase:

3.87 - 3.54 = 0.33

Then

the percent increase for the cost of gas :

`=(0.33)/(3.54) * 100\\\\= 0.093220338983 * 100\\\\=9.3220338983 \ \%`