Finding a Percent of an Amount

Mrs. Rodriguez wants to pay her restaurant bill which is $24.00. If Mrs. Rodriguez wants to leave a 20% tip on the total, how much should she pay?

• 20.35

• 26.40

• 28.80

• 33.60

Talia gave her hairdresser a 20 percent tip, which amounted to $7. How much was the original amount?

Remember to calculate use this formula:

Original (percentage as a decimal) = discount

So you need to work in reverse

• $1.40

• $35

• @140

• $42

If the tip amount was $2.75, what was the bill for lunch before the tip was added to it?

• $5.50

• $13.75

• $16.50

• $55.00

Felipe used a 40 percent off coupon on a single item at the craft store which saved him $16.42. What would the item have cost if he had not used the coupon?

• 22.99

• 32.84

• 41.05

• 56.42

The graph shows the number of baseball cards Jimmy had in his collection on May 1 and on June 1. What was the percent increase in the number of cards from May 1 to June 1?

• 25%

• 20%

• 21%

• 30%

The graph shows the number of baseball cards Jimmy had in his collection on May 1 and on June 1. What was the percent increase in the number of cards from May 1 to June 1?

• 25%

• 20%

• 21%

• 30%

Nyla took a math test and got 12 correct and 3 incorrect answers.

Which proportion shows how you could find the percent of wrong answers?

(Hint: 12 correct and 3 incorrect answers makes 15 total.)

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A restaurant has a sign by the door that says "Maximum occupancy: 75 people." What percent of its capacity is 9 people?

• 9%

• 75%

• 12%

• 21%

Pacino worked 8 hours out of the day.

Which proportion could you use to find the percent of the day he was working?

(Hint: There are 24 hours in a day.)

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A flat-screen television was marked down by 35 percent, which reduced its price by $115.65. What was the original cost of the television before it was marked down?

• 404.78

• 214.78

• 4047.75

• 330.43