Question

The distance in miles that you would travel in the car at 30 mph after X minutes is D(X)=0.5X.

Find how far you would travel after 40 minutes, which is D(40). Show all steps. Make sure you give your answer with units.

A) D(40) = 20 miles
B) D(40) = 15 miles
C) D(40) = 30 miles
D) D(40) = 10 miles

Answer 1

A) D(40) = 20 miles. To find the distance traveled after 40 minutes, substitute X = 40 into the equation D(X) = 0.5X. The correct answer is A) D(40) = 20 miles.

Step-by-step explanation:

To find the distance traveled after 40 minutes, we can substitute X = 40 into the equation D(X) = 0.5X.

D(40) = 0.5 * 40 = 20 miles.

So, the correct answer is A) D(40) = 20 miles.