Question

Harry drove for 4 hours on the freeway, then decreased his speed by 20 miles per hour and drove for 5 more hours on a country road. if his total trip was 368 miles, then what was his speed on the freeway

Answer 1

4f+5c=485 miles
f=c+20

Substitute

4(c+20)+5=485
4c+80+5c=485
9c+80=485
9c=405
c=45 mph

f=45+20
f=65 mph.

Answer 2

Answer:

Y'all got nasty profile pictures! (UHH)

Step-by-step explanation: