If dinner for the Mathsisons is $45.99 and they want to tip 20% how much will they leave total
Mathematics · Middle School · Tue Nov 03 2020
Answered on
A quick way to find this out is this:
Since $45.99 is 100% and he also wants to leave 20% as a tip, that means that he will leave 120% from $45.99 on the table. Lets create a simple ratio in order to find the unknown value of 120%, calling it X.
If 100% is 45.99.
Then 120% is X.
Lets cross multiply, 100 times x equal to 120 times 45.99.
100x = 5518.8
Divide both sides with 100.
100x/100 = 5518.8 / 100
x=$55.188