Kinetic D.

asked • 02/05/21# i cant figure out the equation and dont know what to do

Ben ran and biked for a total of 72 minutes. Ben runs a mile in 10 minutes but bikes a mile in 4 minutes. He biked twice as far as he ran. what are the equations to the system and the answer

## 1 Expert Answer

He runs 4 miles in 40 minutes (4x10)

He bikes 8 miles in 32 minutes (8x4)

40 +32 =72 minutes to go 12 miles

that's an average 12/72 = 1/6 miles per minute

in 72 minutes that's 72(1/6) = 12 miles

He runs 1 mile in 10 minutes. in 40 minutes, that's 4 miles

He bikes 1 mile in 4 minutes, in 32 minutes that's 8 miles

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Raymond B.

02/05/21