1. What is 57% of 11? (1 point)
11 = 0.57 • n; 19.3
n = 57 • 11; 627
n = 0.57 • 11; 6.27
11 = 57 • n; 0.19
2. 224 is 25% of what number? (1 point)
224 • 0.25 = w; 560
224 = 0.25 • w; 896
224 • 0.25 = w; 56
224 = 0.25 • w; 90
3. What is 45% of 10? (1 point)
450
45
4.5
0.45
Find the percent of increase.
4. 50 to 70 (1 point)
20%
30%
40%
50%
Find the percent of decrease. Round your answer to the nearest tenth of a percent where necessary.
5. 75 to 60 (1 point)
20%
30%
40%
50%
Find the percent markup. Round to the nearest whole percent.
6. Store's cost: $100.00
Selling price: $160.00 (1 point)
50%
60%
70%
80%
Find the sale price. Round to the nearest cent.
7. Regular price: $57.63
Percent of discount: 10% (1 point)
$63.39
$5.76
$51.87
$57.53
Find the sale price. Round to the nearest cent.
8. Regular price: $56.00
Percent discount : 40% (1 point)
$50.00
$22.40
$40.00
$33.60
9. Find the interest earned in an account with $600.00 invested at 4.5% annual simple interest for 2 years. (1 point)
$540.00
$5,400.00
$54.00
$13.50
10. Find the interest earned by an account with $1,200 of simple interest of 4% for 3 years. (1 point)
$144.00
$244.00
$44.00
$88.00
1. To find 57% of 11, you multiply 11 by 0.57.
So, 57% of 11 is 6.27.
2. To find 25% of a number, you multiply the number by 0.25.
So, 224 is 25% of 896.
3. To find 45% of 10, you multiply 10 by 0.45.
So, 45% of 10 is 4.5.
4. To find the percent increase, you subtract the original value from the final value, divide by the original value, and multiply by 100%.
In this case, the original value is 50 and the final value is 70.
So, the percent increase is ((70-50)/50) * 100% = 40%.
5. To find the percent decrease, you subtract the final value from the original value, divide by the original value, and multiply by 100%.
In this case, the original value is 75 and the final value is 60.
So, the percent decrease is ((75-60)/75) * 100% = 20%.
6. To find the percent markup, you subtract the cost from the selling price, divide by the cost, and multiply by 100%.
In this case, the cost is $100.00 and the selling price is $160.00.
So, the percent markup is ((160-100)/100) * 100% = 60%.
7. To find the sale price after a discount, you multiply the regular price by (100% - the percent of discount).
In this case, the regular price is $57.63 and the percent of discount is 10%.
So, the sale price is $57.63 * (100% - 10%) = $51.87.
8. To find the sale price after a percent discount, you multiply the regular price by (100% - the percent discount).
In this case, the regular price is $56.00 and the percent discount is 40%.
So, the sale price is $56.00 * (100% - 40%) = $33.60.
9. To find the interest earned with simple interest, you multiply the principal (initial amount invested) by the interest rate and the number of years.
In this case, the principal is $600.00, the interest rate is 4.5%, and the number of years is 2.
So, the interest earned is $600.00 * 4.5% * 2 = $54.00.
10. To find the interest earned with simple interest, you multiply the principal by the interest rate and the number of years.
In this case, the principal is $1,200, the interest rate is 4%, and the number of years is 3.
So, the interest earned is $1,200 * 4% * 3 = $144.00.
1. To find 57% of 11, you multiply 0.57 by 11. The correct answer is 6.27.
2. To find the number that 224 is 25% of, you divide 224 by 0.25. The correct answer is 896.
3. To find 45% of 10, you multiply 0.45 by 10. The correct answer is 4.5.
4. To find the percent of increase from 50 to 70, you subtract the original value (50) from the new value (70), divide it by the original value (50), and then multiply by 100. The correct answer is 40%.
5. To find the percent of decrease from 75 to 60, you subtract the new value (60) from the original value (75), divide it by the original value (75), and then multiply by 100. The correct answer is 20%.
6. To find the percent markup, you subtract the store's cost ($100) from the selling price ($160), divide it by the store's cost ($100), and then multiply by 100. The correct answer is 60%.
7. To find the sale price with a 10% discount, you multiply the regular price ($57.63) by 0.10 and then subtract that amount from the regular price. The correct answer is $51.87.
8. To find the sale price with a 40% discount, you multiply the regular price ($56.00) by 0.40 and then subtract that amount from the regular price. The correct answer is $33.60.
9. To find the interest earned on an account with $600.00 invested at 4.5% annual simple interest for 2 years, you multiply the initial investment ($600.00) by the interest rate (0.045) and then multiply by the number of years (2). The correct answer is $54.00.
10. To find the interest earned by an account with $1,200 of simple interest at 4% for 3 years, you multiply the initial investment ($1,200) by the interest rate (0.04) and then multiply by the number of years (3). The correct answer is $144.00.
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