Question

An airplane flew for 4 hours at a speed of x miles per hour (mph), and at (x+10) mph for next 4 hours. What expression can be used to find the total distance covered by the airplane?

A. 8x
B. 8x+10

C. 8(x+10)

D. 8x+40

Answer 1

The expression that can be used to find the total distance covered by the airplane is 8(x+10).

Step-by-step explanation:

The expression that can be used to find the total distance covered by the airplane is 8(x+10).

To find the total distance covered by the airplane, we need to calculate the distance covered in the first 4 hours and the distance covered in the next 4 hours, and then add them together.

1. Distance covered in the first 4 hours = 4x miles
2. Distance covered in the next 4 hours = 4(x+10) miles
3. Total distance covered = Distance in the first 4 hours + Distance in the next 4 hours = 4x + 4(x+10) = 8x + 40 miles

Answer 2

8(x+10)

Step-by-step explanation:

4 + 4 = 8

Just put the (x+10) and the eight together and that's your answer.

Hope this helps.