Frank is using a cookie recipe that calls for 2 ¼ cups of flour. The recipe yields 20 cookies. How much flour would be needed to
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<u>ANSWER: </u>
The algebraic expression for number of ribbons is and the algebraic expression for length of ribbon is
<u>SOLUTION: </u>
Given, 20 feet of ribbon, cutting ribbon into inches or
inch lengths to make bracelets.
Let us convert the mixed fraction to improper fractions.
Let, the length of bracelets can be made be “x”
First we have to remove the excess length of ribbon and then we have to divide the remaining with length of bracelet we want.
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So, the algebraic expression for number of ribbons is
Now, let us find the algebraic expression for feet of ribbon to make 100 ribbons.
We have 100 bracelets of length x, then total length = 100 × x
length of ribbon = 100x inches
So, the algebraic expression for length of ribbon is
Hence, the algebraic expression for number of ribbons is and the algebraic expression for length of ribbon is