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Semmy [17]
4 years ago
8

A cake recipe requires 3 and 1/4 cups of flour for 13 servings and 4 and 1/2 cups of flour for 18 servings. How much flour is re

quired to make a cake that serves 28?
Mathematics
1 answer:
gregori [183]4 years ago
6 0
So, each serving requires:

3 1/4 divided into 13:
3\frac{1}{4} /13= \frac{13}{4} * \frac{1}{13} = \frac{1}{4}

let's check from the second information:
4 2/4 divided into 18:
4\frac{2}{4} /18= \frac{18}{4} * \frac{1}{18} = \frac{1}{4}


so for 28, we need:

\frac{1}{4} *28= \frac{28}{4} = \frac{14}{2} = 7

we need 7 cups of flour!

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