Question

nolan uses 7 inches of string to make each bracelet. if nolan makes 3 bracelets, how many inches of string will he use?

Answer 1

21 inches

Step-by-step

This can be solved two ways: addition or multiplication.

Addition: Since there are three bracelets you could add 7 three times

7+7+7

= 14+7

= 21

Multiplication: Simply multiply 7 x 3= 21

Answer 2

21 inches

Explanation:

We can write a ratio to solve

7 inches x inches

------------- = -------------------

1 bracelet 3 bracelets

Using cross products

7*3 = 1x

21 = x

21 inches