Question

It costs n dollars to make a dozen bicycles. At the same rate, how many dollars will it cost to make 30 bicycles?

Answer 1

Explanation:

n dollars for 12 bicycles.

what is the factor to go from 12 to 30 ?

12×f = 30

f = 30/12 = 5/2

as it will be the same rate, if will cost 5n/2 dollars