SOLUTION: The total is $7.85. The bill is $8.30 including tax. What is the percentage of tax.

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: The total is $7.85. The bill is $8.30 including tax. What is the percentage of tax.      Log On


   

Question 706038: The total is $7.85. The bill is $8.30 including tax. What is the percentage of tax.
Found 2 solutions by stanbon, josmiceli:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The total is $7.85. The bill is $8.30 including tax.
What is the percentage of tax.
-------
Tax Quantity: 8.30-7.85 = 0.45
------
Tax Percentage: 0.45/7.85 = 0.057 = 5.7%
================================
Cheers,
Stan H.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = the dollar amount of the tax
+7.85+%2B+x+=+8.3+
+x+=+8.3+-+7.85+
+x+=+.45+
+.45%2F+7.85+=+.0573+
+.0573%2A100+=+5.73+
The tax is 5.73%