Question 310595
At the end of the day, a storekeeper had $1144 in the cash register, 
counting both the sale of goods and the sales tax of 4%.
 Find the amount that is the tax.
:
Here is a method that shows you what is going on here
:
Let a = amt for the sale of goods only
then
.04a = amt of tax
:
A simple equation
a + .04a = 1144
1.04a = 1144
a = {{{1144/1.04}}}
a = $1100 for the goods
then
.04(1100) = $44 is amt of the tax