SOLUTION: sally walked(4miles per hour) frome home to the bike shop. She then rode her newly repaired bike home(at 12 miles per hour)if the round trip took a total of 2 and 1/2 hours how far

Question 272431: sally walked(4miles per hour) frome home to the bike shop. She then rode her newly repaired bike home(at 12 miles per hour)if the round trip took a total of 2 and 1/2 hours how far does sally bike from the bike shop? how do i go about setting this up? thank u
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
D=RT
D=4*T FOR THE WALK
D=12(T-2.5)
BECAUSE THE DISTANCES ARE EQUAL SET THE 2 EQUATION EQUAL
4T=12(T-2.5)
4T=12T-30
4T-12T=-30
-8T=-30
T=-30/-8
T=3.75 HOURS FOR THE WALK.
4*3.74=15 MILES FROM HOME TO THE BIKE SHOP.
SAME FOR THE RETURN BIKE RIDE.
PROOF:
15=12(3.75-2.5)
15=12*1.25
15=15
RELATED QUESTIONS
Marie rode her bicycle from her home to the bicycle shop in town and then walked back... (answered by solver91311)

Marie rode her bicycle from her home to the bicycle shope in town and then walked... (answered by ewatrrr)

Walt rode his bike from home to the bicycle repair shop and then walked home. He averaged (answered by checkley79)

Lois rode her bike to a friends at 10 miles per hour. She got a ride back home in a car,... (answered by josmiceli)

Hi Sally walked halfway to school at 5km per hour. She then ran the rest of the way at... (answered by greenestamps,ikleyn,robertb)

Sally walked to the store from her home at the rate of 5 miles per hour. After spending... (answered by ikleyn,greenestamps)

Anita rode her bike from her home to the repair shop at an an average speed of 30 kph.... (answered by josgarithmetic,Edwin McCravy,Alan3354)

Wanatobe walked to the moot at 4 miles per hour and then rode back home in bus at 24... (answered by ikleyn,greenestamps,josgarithmetic)

A person rides his bike to the park at 12 miles per hour then back home at 16 miles per... (answered by drj)