Question

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?

Answer 1

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`