#9 1) To make lemonade, you need 6 lemons and 8 cups of water. How many lemons do you need if you have 24 cups of water?
Let x be the number of lemons you need if there are 24 cups of water
Word Ratio, Ratio Table, Ratio
You need 18 lemons if you have 24 cups of water.
#21 2) 3 posters costs $9.60. At that rate, how many posters can you buy for $48?
Let x be the number of posters you can buy for $48
Word Ratio, Ratio Table, Ratio
At that rate, you can buy 15 posters.
Your Problem:
At Discount Copy, 12 copies cost $0.66. Melissa needs 56 copies. How much should they cost?