Question 89938
the energy that Jeff's truck uses is proportional to the distance he drives and the weight of the load e=kdw


k is the constant of proportionality and is determined for the truck from Jeff's initial trip k=e/(dw)


k=99.86/(120*8000) ... using the equation e=kdw, you can plugin values from the legs of the trip to find the weights


Jeff's trip home at the end is with the same weight as the beginning so the distance is porportional to the energy


each dealer gets 3 cars ... Jeff's house is 50 miles from U-Bought-It ... Rip-You-Off got 100 lbs of potatoes