While racing around the track last week, Marco was able to get to 120 mph. This week Marco tried again and was able to reach 135 mph. What was the percentage increase from last week to this week?
Responses
A15%
15%
B10%
10%
C12.5%
12.5%
D17.5%
The percentage increase from last week to this week can be calculated using the formula:
Percentage Increase = (New Value - Old Value) / Old Value * 100
Using this formula, the percentage increase is:
(135 - 120) / 120 * 100 = 15 / 120 * 100 = 0.125 * 100 = 12.5%
Therefore, the correct answer is C) 12.5%.