Find Total Distance

[nycmathguy]

A trucker drove for 4 hours at an average speed of 60 miles per hour (mph) and then for 3 hours at an average speed of 30 mph. What was his total distance traveled?

Let D_1 = first distance.

Let D_2 = second distance

D_1 = 4(60)

D_1 = 240 miles.

D_2 = 3(30)

D_2 = 90 miles.

Let D_1 + D_2 = total distance

D_1 + D_2 = 240 miles + 90 miles

D_1 + D_2 = 330 miles.

The truck driver drove a total distance of 330 miles.

 

[MathLover1]

correct

 

[nycmathguy]

correct

Don't you just love GED mathematics?