Steve got his car fixed for $557. After taxes it cost him $594. What was the tax rate to the nearest %?

-What I have so far-

Bill: $557

Total:$594

557·x=594

(Solve and round to nearest %)

You're nearly there. Just some more steps.

557 * x = 594 tells us

x = 594 / 557 (divide both sides by 557)

x ≈ 1.066427

When we've found this number we must realise the following:

the '1' in this answer is the 100% the car fixing costs (without taxes)

the '0.66427' stands for the tax rate.

To find the tax rate we multiply 0.66427 by 100, which gives us:

0.66427 * 100 = 6.6427 ≈ 7

So, rounded to the nearest %, the tax rate is 7%