Question

A construction company is building concrete pillars at the entrance of an auditorium. Each pillar requires 5 3/4 yd Of concrete.how many cubic yards Will be required to construct nine pillars

Answer 1

c: 51 3/4

Explanation:

Answer 2

`\bf 5(3)/(4)\implies \cfrac{5\cdot 4+3}{4}\implies \cfrac{23}{4}\\\\ -------------------------------\\\\ 9\cdot \cfrac{23}{4}\implies \cfrac{207}{4} \\\\\\ \textit{how many times 4 goes in 207? well \underline{51}, and a remainder of \underline{3}} \\\\\\ thus\qquad \cfrac{207}{4}\implies 51(3)/(4)`