Question

Answer each part. If necessary, round your answers to the nearest hundredth(a) It takes 60 pounds of seed to completely plant a 10-acre field.How many pounds of seed are needed per acre?pounds per acre(b) At Keller's Bike Rentals, it costs $17 to rent a bike for 3 hours.How many hours of bike use does a customer get per dollar?hours per dollar

Answer 1

a) Let x represent the number of pounds of seed needed per acre. From the information given, It takes 60 pounds of seed to completely plant a 10-acre field. Thus, we have the following equations

60 = 10

x = 1

By crossmultiplying, we have

10x = 60

x = 60/10

x = 6

6 pounds of seed are needed per acre

b) Let x represent the number of hours of bike use that a customer gets per dollar. From the information given, it costs $17 to rent a bike for 3 hours.

Thus, we have the following equations

17 = 3

1 = x

By crossmultiplying, we have

17x = 3

x = 3/17

x = 0.17647

Rounding to the nearest hundredth,

the number of hours of bike use that a customer gets per dollar is 0.18