Question

Erik used 28 centimeters of tape to wrap 7 presents. How much tape will Erik need in all if he has to wrap 12 presents? Solve using unit rates.

Answer 1

Length of tape required to wrap 12 presents is 48 centimeters.

Explanation:

Length of tape required to wrap 7 presents = 28 centimeters

Length of tape required to wrap 1 present =
`(28)/(7)=4` centimeters

Therefore,

Length of tape required to wrap 12 presents = 12 × Length of tape required to wrap 1 present

= 12 × 4

= 48 centimeters