How do you find the final cost of each purchase if there is a 20% tax on $1,608.98?

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Answer 1 · 2017-04-13T12:27:16

See the entire solution process below:

We can rewrite this problem as:

What is the $1,609.98 plus 20% of $1,608.98?

"Percent" or "%" means "out of 100" or "per 100", Therefore 20% can be written as #20/100#.

When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the final cost we are looking for "c".

Putting this altogether we can write this equation and solve for #c# while keeping the equation balanced:

#c = $1609.98 + (20/100 xx $1609.98)#

#c = $1609.98 + ($32199.60)/100#

#c = $1609.98 + $322.00#

#c = $1931.98#

The final cost of the purchase including the 20% tax is $1,931.98 rounded to the nearest penny.