Math homework help????

Question

a mazda requires 18 more feet to stop from 80 miles per hour than a nissan. a honda requires 26 more feet to stop from 80 miles per hour than a nissan.the combined distance that each car requires to stop from 80mph is 734. what is the stopping distance required for each car?

i know i have to use distance formula

D= rate x time

i dont know how though

Answer 1

Let the stopping distance for the nissan be n ft.

Then the distance for the honda is n + 26 ft, and for the mazda is n + 18 ft.

The total of these distances is 734 (I hope it's 734 ft).

n + (n + 18) + (n + 26) = 734

3n + (18 + 26) = 734

3n + 44 = 734

3n = 690

n = 230.

The nissan requires 230 ft, the honda 230 + 26 = 256 ft, and the mazda 230 + 18 = 248 ft.

No need for 'D = rate x time' here.