Question

Mr. Jenson was driving 40mph on Transit Road, then slowed down to 25mph once he entered a school zone. What was the percent decrease of his speed

Answer 1

37.5% decrease in speed

Explanation:

40-25=15 he slowed down by 15 mph

15/40=0.375=37.5%

Answer 2

Answer: Mr. Jenson's speed decreased by 37.5%.

Explanation:

To calculate the percent decrease in Mr. Jenson's speed, you need to find the difference between his initial speed and his final speed, and then express it as a percentage of his initial speed.

Initial speed = 40 mph

Final speed = 25 mph

Now, calculate the decrease in speed:

Speed decrease = Initial speed - Final speed

Speed decrease = 40 mph - 25 mph = 15 mph

To find the percent decrease, divide the speed decrease by the initial speed and then multiply by 100 to express it as a percentage:

Percent decrease = (Speed decrease / Initial speed) * 100

Percent decrease = (15 mph / 40 mph) * 100

Percent decrease = (3/8) * 100

Percent decrease = 37.5%