If the ﬂour to sugar ratio is 5 cups ﬂour to 1 cup sugar, then how much sugar is needed if only 2 cups of ﬂour are used?

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If the ﬂour to sugar ratio is 5 cups ﬂour to 1 cup sugar, then how much sugar is needed if only 2 cups of ﬂour are used?

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Answer 1 · 2015-10-31T12:57:13

$\frac{2}{5}$ $2/5$ cups are needed.

Explanation:

You write it out as a ratio.
$(\frac{5}{1}) = (\frac{2}{x})$ $(5/1)=(2/x)$
You cross-multiply.
$5 x = 2 \cdot 1$ $5x=2*1$
Simplify.
$5 x = 2$ $5x=2$
Divide each side by five to find the value of x.
$x = \frac{2}{5}$ $x=2/5$
$\frac{2}{5}$ $2/5$ or $0.4$ $0.4$ cups of flour are needed.

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If the ﬂour to sugar ratio is 5 cups ﬂour to 1 cup sugar, then how much sugar is needed if only 2 cups of ﬂour are used?

1 Answer

Explanation:

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