Question

a) At Keller's Bike Rentals, it costs $23 to rent a bike for 4 hours. How many dollars does it cost per hour of bike use? b) It takes 45 pounds of seed to completely plant a 7 - acre field. How many acres can be planted per pound of seed?

Answer 1

item a)

If it have a cost of $23/4h, to calculate the value per hour we just need to do this division.

`(23)/(4)=5.75`

And this is our result. It costs 5.75 dollars per hour.

Item b)

This one is the same thing. We have a rate of 7 acre/45 pounds, for 1 pound we just do the division.

`(7)/(45)=0.155555555\ldots\approx0.16`

And this is our answer. With one pound we can plant 0.16 acres.