Ryan is riding his bike. he biked a distance of 12 miles at a rate of 4 miles per hour. rearrange the distance formula, d = rt, to solve for ryan's time in minutes.

480 minutes
180 minutes
8 minutes
3 minutes

  180 minutes

Step-by-step explanation:

Starting with the distance formula ...

  d = rt

dividing by the coefficient of t will give an equation for t:

  t = d/r

Ryan's rate of 4 miles per hour can be expressed in minutes as 4 miles per 60 minutes. The Ryan's time is ...

  t = (12 mi)/(4 mi/60 min) = 12·60/4 min = 180 min

Ryan's time is 180 minutes.

answer: idk

step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x