The runner's time to complete the marathon is 45 minutes. The time to complete the last marathon was 49.5 minutes. What is the percent decrease of the time ?

Question

asked Aug 17, 2022 136k views

1 Answer

Andrew Homeyer · Answer 1 · 2022-08-22T15:33:24+0000

Answer:

9.09%

Explanation:

To find percent decrease you have to use this equation:

Percent Decrease = (Initial -New)/(Initial) x 100

Initial = 49.5

New = 45

Plug in and solve:

$PD = (49.5-45)/(49.5) x 100\\\\PD = (4.5)/(49.5) x 100 \\\\PD = 0.0909 x 100\\\\PD = 9.09$

The percent decrease is 9.09%

Hope this helps!!

- Kay :)