$1,725 couch; 7.5% tax, how much is the cost of the couch?

1 Answer
Oct 30, 2016

Answer:

The total cost of the couch including tax is #1,854.38#

Explanation:

% or percent means "out of 100" or "per 100" therefore 7.5% can be written as #7.5/100#

To calculate the full cost of the couch #C# is:

#C = 1725 + (7.5/100)1725#

#C = 1725 + 12937.5/100#

#C = 1725 + 129.375#

Rounding to the nearest dollar gives:

#C = 1725 + 129.38#

#C = 1854.38#