Hilton Paiva: x mi/h = speed of slower carsolve for x4x+4(x+10)=440
Raelene Cunnick: Let x = slower car:(x + [x + 10]) x 4 hr = 440(2x + 10) x 4 = 4408x + 40 = 4408x = 400Car 1(x) = 50Car 2 = 60Proof:50 x 4 = 20060 x 4 = 240200 + 240 = 440...Show more
No comments:
Post a Comment