SOLUTION: Glen is using a recipe for a cake that serves four people and calls for 2 1/4 cups of flour. If Glen wants to bake a cake that will serve ten guest, how much flour should he use?

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Question 910199: Glen is using a recipe for a cake that serves four people and calls for 2 1/4 cups of flour. If Glen wants to bake a cake that will serve ten guest, how much flour should he use?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
A proportion. Increase the size of everything by a factor. Serve 10 people instead of just 4 people. This is a factor of 10%2F4=5%2F2.

highlight%28%282%261%2F4%29%2A%285%2F2%29%29, how many cups of flower to use.