Answer:
The first thing you ever do when simplifying an expression is distributing the coefficient. For example the expression 3(5x+6+4x) The first thing we would do is distribute the 3 into each value in the parantheses. It would make sense to add the 4x and 5x, but that goes out of order. This is just the rules when it comes to follwing distributive property in it's simplest form.
Calculator because it is hard to figure out mentally
5 cups of flour will make 5/(1 1/2) x 15 = 50 shortbread cookies
4 cups of sugar will make 4/(1 1/4) x 15 = 48 shortbread cookies
1 3/4 cups of butter will make (1 3/4)/(1/2) x 15 = 52 1/2 shortbread cookies
Therefore, 5 cups of flour, 4 cups of sugar, and 1 3/4 cups of butter will make 48 shortbread cookies.
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