Question

If Jasmine spent $280 on 20 pairs of earrings, what was the cost of 1 pair?

Answer 1

Let x represent the cost of 1 pair. We would have the following equations

280 = 20

x = 1

By crossmultiplying, we have

x * 20 = 1 *280

20x = 280

x = 280/20

x = 14

The cost of 1 pair is $14