Question

lanes grocery store
weight in pounds (p) | cost in dollars (c)
3 | 15
5 | 25
7 | 35
9 | 45
10 | 50
select the equation that shows a cost of meat per pound which is twice the cost of the meat at lane’s grocery store
○ $c = 10p$
○ $c = 5p$
○ $c = 30p$
○ $c = 6p$

Explanation:

Step1: Find cost per pound at Lane's

Use the first row: \( p = 3 \), \( c = 15 \). Cost per pound \( r=\frac{c}{p}=\frac{15}{3}=5 \). So Lane's cost equation is \( c = 5p \).

Step2: Find twice Lane's cost

Twice \( 5 \) is \( 10 \). So the equation should be \( c = 10p \).

Answer:

\( c = 10p \) (the first option)