IXL | Multi-step problems with percents

In Richmond, Chloe ordered $40 worth of sushi. She knew that when the bill came, she would need to pay Richmond sales tax of 5% and would want to leave a 20% tip on the original $40. Including tax and tip, how much did Chloe's meal cost?

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question

Tommy took one of his friends out to dinner. The dinner cost $100 and he paid 3% sales tax. If Tommy left an 18% tip on the $100, how much in total did he pay?

key idea

Tax formula:

tax

tax percentage

amount

Tip formula:

tip

tip percentage

amount

solution

First find the tax. Write 3% as the decimal 0.03 before using it in the equation.

tax

tax percentage

amount

0.03

100

The tax was

Now find the tip. Write 18% as the decimal 0.18 before using it in the equation.

tip

tip percentage

amount

0.18

100

The tip was

Finally, find the total cost.

total cost

cost + tax

tip

100

121

The total cost was

121

Looking for more? Try these:

Lesson: Percent change

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Teacher tools

Work it out

Not feeling ready yet? These can help:

I.5Percent of a number: tax, discount, and more

H.9Solve percent equations

D.1Add and subtract decimals

Lesson: Percent change

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