Joana spent $145 on groceries and after tax the final amount was $156.6. What was the tax rate
1 answer:
Answer:
8%
Step-by-step explanation:
Tax equals the original amount times the tax rate
We can find the tax by taking the amount he paid minus the original amount
tax = 156.6 - 145
tax = 11.6
tax = original amount * tax rate
11.6 = 145 * tax rate
Divide each side by 145
11.6/145 = 145/145 * tax rate
.08 = tax rate
To change this to percent, multiply by 100%
.08*100% = 8%
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Step-by-step explanation:
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12% of x = 36
12/100 x = 36
x = 36 x 100/ 12
x= 300
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Answer:
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