PLEASE HELP PLEASE A recipe that makes 2 dozen cookies calls for 4 1/2 cups of flour. How much flour would be needed to make 7 dozen cookies? A) 31 1/2 cups B) 9 cups C) 14 cups…

Question

asked Oct 20, 2020 142k views

1 Answer

FAISAL · Answer 1 · 2020-10-26T04:00:20+0000

Answer:

Option D) 15 3/4 cups

Explanation:

we know that

using proportion

Let

x ----> the cups of flour needed

$4(1)/(2)=(4*2+1)/(2)=(9)/(2)\ cups\ flour$

$((9/2))/(2)=(x)/(7) \\ \\x=(9/2)*7/2\\ \\x=63/4\ cups\ flour$

convert to mixed number

$63/4\ cups=15.75=15(3)/(4)\ cups$