Question

when mrs.stewart makes pie dough, she uses 2 /3 cup of shortening for every 2 1/2 cups of flour. Which porportion could be used to find the amount of floue x mrs. stewart needs when she uses 5 cups of shortning

Answer 1

Answer:

$18\frac{3}{4}\ cups\ flour$

Step-by-step explanation:

we know that

Mrs. Stewart uses 2/3 cup of shortening for every 2 1/2 cups of flour

so

using proportion

Find out the amount of cups of flour needed when she uses 5 cups of shortening

Let

x -----> the amount of cups of flour needed

Remember that

$2\frac{1}{2}=\frac{2*2+1}{2}=\frac{5}{2}$

The proportion that could be used is

$\frac{(5/2)}{(2/3)}\ \frac{cups\ flour}{cups\ shortening} =\frac{x}{5}\ \frac{cups\ flour}{cups\ shortening} \\\\x=5(5/2)/(2/3)\\\\x=\frac{75}{4}\ cups\ flour$

Convert to mixed number

$\frac{75}{4}\ cups\ flour=\frac{72}{4}+\frac{3}{4}=18\frac{3}{4}\ cups\ flour$