A landscaper is raising the price she charges to mow a lawn by 20%. If she used to charge $30 to mow a lawn, what is her new rate?

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Answer 1 · 2016-12-30T06:56:28

The new price is #$36#

There are two methods you can use:

#1#. Find the 20% of $30 and add it on.

#20% " of " $30#

#=20/100 xx 30/1#

#=$6#

The new price is #$30+$6 =$36#

#2#. Add 20% onto 100% and find 120% of $30

If 20% is added on the the new price represents #120%

#120% " of " $30#

#120/100 xx 30/1#

#=$36#

The second method is more direct and can also be used easily in algebra because it involves multiplication.