Samantha worked after school at a local petting zoo. 21 hours represents 60% of her time working each week. How much time did she spend working each week?

1 Answer
May 11, 2018

This is a matter of fractions

Explanation:

You know that 21 hours is 60% of her work time
so...

#60/100# would equal 21 by a bigger whole. Use x to represent this.

#60/100=21/x#

If you cross multiply you would get: #60x=21*100#

#x=2100/60#