Question

Hose bought 1.5 pounds of apples for $3.60 how much would 3/4 of a pound of apples cost

Answer 1

`\bf \begin{array}{ccll} \stackrel{apples}{lbs}&\$\\ \cline{1-2} 1.5&3.6\\[1em] (3)/(4)&x \end{array}\implies \cfrac{1.5}{~~(3)/(4)~~}=\cfrac{3.6}{x}\implies \cfrac{1.5}{1}\cdot \cfrac{4}{3}=\cfrac{3.6}{x}\implies \cfrac{6}{3}=\cfrac{3.6}{x} \\\\\\ 2=\cfrac{3.6}{x}\implies 2x=3.6\implies x=\cfrac{3.6}{2}\implies x=1.8`