Download Math 110 Practice Exam Chap 7.tst

Math 110
Practice Exam Chapter 7
Write the percent as a decimal.
1) 300%
2) 42.06%
3) 40%
Write the percent as a fraction or mixed number in simplest form.
4) 4.5%
3
5) 14 %
4
6) 125%
Write the decimal as a percent.
7) 0.33
8) 0.037
9) 0.5624
Write the fraction or mixed number as a percent.
56
10)
25
11)
1
3
12) 1
3
10
Solve.
13) What number is 85% of 22?
14) 56% of what number is 83?
15) What percent of 48 is 51?
16) 12% of 59.2 is what number?
17) 16% of what number is 71.7?
18) What percent of 500 is 10?
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Solve. If necessary, round percents to the nearest tenth, dollar amounts to the nearest cent, and all other numbers to the
nearest whole.
19) Last year, Nora bought a share of stock for $42.00. She was paid a dividend of $5.04. Determine what percent of
the stock price is the dividend.
20) 20% of the doctors in a hospital are female. If there are 870 doctors altogether, how many doctors are female?
21) An inspector found 48 defective cameras during an inspection. If this is 0.012% of the total number of cameras
inspected, how many cameras were inspected?
22) A union contract calls for a 2.3% salary increase for all employees. Determine the new salary for a worker who
is currently making $23,940.
23) Last year the profit for a company was $ 442,000. This yearʹs profit decreased by 3.8%. Find this yearʹs profit.
24) What is the sales tax and total price on a necklace priced at $280 if the sales tax rate is 6.2%?
25) A calculator has a purchase price of $26. If the sales tax on this purchase is $1.30, find the sales tax rate.
26) How much commission will an agent make on the sale of a $355,300 house if she receives 1.5% of the selling
price?
27) A $330.00 dress is on sale for 20% off. Find the discount and the sale price.
28) A salesperson earned a commission of $6084 for selling $50,700 worth of pet supplies to various stores. Find the
commission rate.
29) Rosey borrows $3900 and agrees to pay it back in 3 years. If the simple interest rate is 4%, find the total amount
she pays back.
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Answer Key
Testname: MATH 110 PRACTICE EXAM CHAP 7
1) 3
2) 0.4206
3) 0.4
9
4)
200
5)
59
400
6) 1
1
4
7) 33%
8) 3.7%
9) 56.24%
10) 224%
1
11) 33 %
3
12) 130%
13) x = 85% · 22
14) 56% · x = 83
15) x · 48 = 51
12
a
= 16)
59.2 100
17)
71.7
16
= b
100
18)
10
p
= 500 100
19) 12%
20) 174 doctors
21) 400,000 cameras
22) $24,490.62
23) $425,204.00
24) $17.36
25) 5%
26) $5329.50
27) Discount: $66.00; sale price: $264.00
28) 12%
29) $4368
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