Three months ago, Santos could walk 2 miles in 40 minutes. Today he can walk 2 miles in 25 minutes. Find the percent of change and round to the nearest whole percent.
2 miles out of 40 minutes or 2/40 is .05
2 miles out of 25 minutes or 2/25 is .08
so he increased by .03 miles per minute
Answer:
Percent of increase in the speed will be 60%.
Step-by-step explanation:
Three months ago speed of walking = \(\frac{2}{40}\)
= 0.05 miles per minute
Walking speed of Santos today = \(\frac{2}{25}\)
= 0.08 miles per minute
Change in speed = 0.08 - 0.05
= 0.03 miles per minute
Percent of change in the speed = \(\frac{0.03}{0.05}\times 100\)
= 60%
Therefore, percent of increase in the speed will be 60%