contestada

Dave can bike his exercise route an hour and half faster than he can walk it. his biking speed is 9 mph faster than his walking speed. if his route is 6 miles long an equation that can be used to find his walking speed. what is dabbed walking speed.

Dave can bike his exercise route an hour and half faster than he can walk it his biking speed is 9 mph faster than his walking speed if his route is 6 miles lon class=

Respuesta :

walking = biking + 1.5 hour

biking speed = 9 mph + walking speed

route = 6 miles

6/w = 6/(w + 9) - 3/2

Solving for w:

108 = -3w^2 - 27w ==> 3w^2 + 27w + 108 = 0 ==> x^2 + 9x + 36 = 0

Ver imagen AllanaP483462
Ver imagen AllanaP483462

Otras preguntas