Answers MO-Mathematics 7Finding a Percent of a Number

Finding a Percent of a Number Answers

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If Zöe orders a book from Store Y, how much tax will she pay?Comparison of Online Bookstores Store XStore YCost of book$17.00$18.00Tax rate6%8%Shipping10% of cost before taxFREE

$1.44

$2.25

$12.25

$14.40

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A 1-liter bottle of orange juice used to cost $2.85 at a food market. Its price has increased; the new price is 110 percent of the original price. What is the new price of the juice? Round your answer to the nearest cent.

$2.95

$2.99

$3.09

$3.14

If Jaime wants to find 60% of 320, which table should he use?

A 2-column table with 11 rows. Column 1 has entries 10 percent, 10 percent, 10 percent, 10 percent, 10 percent, 10 percent, 10 percent, 10 percent, 10 percent, 10 percent, Total 100 percent. Column 2 has entries blank, blank, blank, blank, blank, blank, blank, blank, blank, blank, Total blank.

A 2-column table with 5 rows. Column 1 has entries 25 percent, 25 percent, 25 percent, 25 percent, Total 100 percent. Column 2 has entries blank, blank, blank, blank, Total blank.

A 2-column table with 4 rows. Column 1 has entries 30 percent, 30 percent, 30 percent, Total 100 percent. Column 2 has entries blank, blank, blank, Total blank.

A 2-column table with 3 rows. Column 1 has entries 50 percent, 50 percent, Total 100 percent. Column 2 has entries blank, blank, Total blank.

While shopping at a clearance sale, Samantha finds a $60.00 dress on sale for 25% off. Samantha also has a 50% off coupon. Which statement correctly summarizes her savings?

Samantha will save $45.00 because the two sales will combine for 75% off the original cost.

Samantha will save $37.50 because she must first find the 25% sale price before taking the extra 50% reduction.

Samantha will save $22.50 because she must first find the 25% sale price before taking the extra 50% reduction.

Samantha will save $15.00 because the two sales will combine for 75% off the original cost.

Each hour, the number of bacteria in Dr. Nall’s petri dish tripled. What percent is the population compared to the population the hour before?

30%

130%

300%

Charissa is eating out with friends, and it is her turn to pay the gratuity. The bill for the food is $26.50. If she plans to tip at 20%, what should she pay if she doesn’t want to leave pennies on the table?

$0.55

$1.30

$2.65

$5.30

Andrew and Kate have $30 to spend on dinner, tax, and gratuity at Mo’s Restaurant. Tax is 6%, and they will give a 15% tip on the total bill after taxes. Their dinner costs $21.00. Which statement correctly explains whether Andrew and Kate have enough money to pay their bill?

Yes. They have enough to pay their bill: and .

No. They do not have enough to pay their bill: and .

Joelle would like to tip her hairdresser 20%. If her haircut costs $38.00, which expression should she use to find the tip amount?

(0.02) (38)

(0.2) (38)

(1.2) (38)

(20) (38)

Maria studied the traffic trends in India. She found that the number of cars on the road increases by 10% each year. If there were 80 million cars in year 1 of her study, how many more cars were on the road in year 3 compared to year 2?

8,000,000

8,800,000

88,000,000

96,800,000

If Adam orders a book from Store X, how much will he owe to the nearest cent? The tax rate only applies to the cost of the book.Comparison of Online Bookstores Store XStore YCost of book$17.00$18.00Tax rate6%8%Shipping10% of cost of the bookFREE

$17.16

$19.72

$21.53

$27.20

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