Question

A 4-pack of marbles costs $0.36. What is the unit price? per marble

Answer 1

1) If a 4 pack costs $ 0.36 to find the unit price we can set a proportion, and then cross multiply

4 marbles --------------------- 0.36

1 marble ------------------------ x

`(4)/(1)=(0.36)/(x)`

4x=0.36 Divide both sides by 4

x= 0.09

So, the unit price is $0.09 per marble