There are 12 feet of wrapping paper on each roll. Jill needs 84 feet of wrapping paper. Which equation can Jill use to find the number of rolls, r , she needs? need equation
Accepted Solution
A:
Let r----------------- > number of rolls x-----------------> feet of wrapping paper needs
we know that 1 r--------------------- > 12 feet of wrapping paper therefore r=(1/12)*x------------- > equation required
for x=84 feet of wrapping paper r=(1/12)*84=7 rolls