Question

If four pounds of potatoes cost $6.00, how much would 10 pounds of potatoes cost.

SHOW ALL YOUR WORK!!!!!

Answer 1

lemme just add some to the great reply above,

`\begin{array}{ccll} lbs&\$\\ \cline{1-2} 4&6\\ 10&x \end{array}\implies \cfrac{4}{10}=\cfrac{6}{x}\implies 4x = 60\implies x = \cfrac{60}{4}\implies x = 15`

Answer 2

10 pounds of potatoes would cost $15.

Explanation:

Set up proportion.

4/6=10/x

simplify 4/6 into 2/3,

2/3=10/x

cross product,

2*x=3*10

2x=30

x=30/2

x=15