Post a New Question

Math

posted by .

Mike drove to a friends house at a rate of 40 mph he returned by the same route at 45 mph The driving time round trip was 4 hours. write and solve an equation to find the distance Mike traveled

  • Math -

    since time = distance/speed,

    d/40 + d/45 = 4
    d = 84.7 miles
    round trip = 169.4 miles

    check:
    84.7/40 = 2.118
    84.7/45 = 1.882
    total: 4.000 hours

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question