Q. Orly has 3 cups of raisins for every 10 cups of trail mix she makes. How many cups of trail mix will she make if she uses 12 cups of raisins?
Set Proportion: Ratio of raisins to trail mix is 3 cups of raisins for every 10 cups of trail mix. To find how many cups of trail mix Orly can make with 12 cups of raisins, use the proportion:10 cups of trail mix3 cups of raisins=x cups of trail mix12 cups of raisins
Cross-Multiply and Solve: Solve for x by cross-multiplying:3x=120x=40
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