Question

If you bought something in Wyoming for $89, you would be charged $3.56 in state sales tax. What is the state sales tax rate in Wyoming?

Answer 1

Let the answer be x percent:

So we say: the tax is x% of the price,

this means: $3.56 is x% of $89


"something %" means 1/100 times something,

thus, we write and solve the following equation:



`\displaystyle{ 3.56= (x)/(100)\cdot 89`


`3.56\cdot100=x\cdot89`


`356=89x`


`\displaystyle{ x= (356)/(89)= 4`



Answer: the tax is 4%