a 12.6 ounce bottle cost $2.37 and a 25.3 ounce bottle cost $5.24. find the unit price

Question

need to find the unit price for both 

Answer 1

Hi Angle,

 

The "unit" in the unit price is 1 ounce.

 

If it cost $2.37 for 12.6 ounces how much should it cost for 1 oz?

 

You do cross multiplication to get to the answer

 

12.6 oz ========= $2.37

1 oz      ========= $??(x)

 

x = [(1 oz)($2.37)]/(12.6 oz) = 0.1880

 

Unite price of the first one is $0.19. Can you use the same method to get the second unite price?