Question

Tammy is preparing juice for snack time at the day care where she works. To make the juice, Tammy mixes 40 ounces of water with each can of orange juice concentrate. Tammy uses 4 cans of orange juice concentrate and completely fills a 192-ounce dispenser with the juice she makes.
Which equation can you use to find c, how much orange juice concentrate is in each can?

Answer 1

Let c be the ounces of concentrate per can. Each can makes c + 40 ounces of juice, and 4 cans make 192 ounces:

4(c + 40) = 192

You can also write 4c + 160 = 192, which gives 4c = 32 and c = 8.