# Pre Algebra Worksheet III Partial

Document Sample

Pre-Algebra Worksheet # 2

Completion
Complete each statement.

1. A ratio that compares a number to 100 is called a(n) ______________

2. The ratio                          is called the ___________________

3. Percent is used to calculate _______________, a fee paid to a person who makes a sale.

Problem

Find the Percent Increase or Decrease.

4.   The price of a meal went from \$16.00 to \$18.00. Find the percentage of increase.
5.   A radio which usually costs \$50.00 is on sale for \$40.00. Find the percentage of the
discount.
6.   The price of a CD went from \$12.00 to \$15.00. Find the percentage of increase.
7.   The price of a ball went from \$15.00 to \$20.00. Find the percentage of increase.
8.   A computer which usually costs \$1,500.00 is on sale for \$1,250.00. Find the
percentage of the discount.
Find the commission or sales tax.

9.   A salesman earns a 7% commission of his total sales.
How much did he earn for selling a \$300.00 CD–player?
10.   A salesman earns a 7% commission of his total sales.
How much did he earn for selling a \$500.00 TV set?
11.   A salesman earns a 7% commission of his total sales.
How much did he earn for selling a \$50.00 calculator?
12.   A record costs \$6.00. The sales tax rate is 8%. How much is the tax?
13.   A record costs \$5.00. The sales tax rate is 8%. How much is the tax?
Find the percent or the part.

14. Four friends volunteered to cut the grass around their neighbor’s house. Jay cut 23% of the grass, Aimee cut
of the grass, Ken cut 0.31 of the grass, and Bryan cut the rest. What percent of the grass did Bryan cut?
15. Four friends orderd pizza. Christopher ate      , Emma ate 30%, Tanya ate 0.27, and Jamie ate the rest. What
percent of pizza did Jamie eat?

Find the Whole.

16. Anna earned 85% on a test by answering 17 questions correctly. If each question was worth the same amount,
how many questions were on the test?
17. Isaac sold 58 of his baseball cards at a collectors’ show. If this represented 14.5% of his total collection, how
many baseball cards did Isaac have before he sold his cards?

Find the missing variable, remember the formula is I = P r t.

18. To buy a car, Jessica borrowed \$ 15,000 for 3 years at an annual simple interest rate of 9%. How much
interest will she pay if she pays the entire loan off at the end of the third year? What is the total amount that
she will repay?
19. Nancy invested \$6,000 in a bond at a yearly rate of 3%. She earned \$450 in interest. How long was the money
invested?
20. John’s parents deposited \$1000 into a savings account as a college fund when he was born. How much will
John have in this account after 18 years at a yearly simple interest rate of 3.25%?
Pre-Algebra Worksheet # 2

COMPLETION

1. ANS: Percent

PTS: 1
2. ANS: Percent change

PTS: 1
3. ANS: Commission.

PTS: 1

PROBLEM

4. ANS:
12.5%

PTS: 1
5. ANS:
20%

PTS: 1
6. ANS:
25%

PTS: 1
7. ANS:
33.33%

PTS: 1
8. ANS:
16.66%

PTS: 1
9. ANS:
\$21

PTS: 1
10. ANS:
\$35

PTS: 1
11. ANS:
\$3.50
PTS: 1
12. ANS:
\$0.48

PTS: 1
13. ANS:
\$0.40

PTS: 1
14. ANS:
26%

PTS: 1
15. ANS:
23%

PTS: 1
16. ANS:
20 Questions

PTS: 1
17. ANS:
400 cards

PTS: 1
18. ANS:
\$4050; \$ 19,050

PTS: 1
19. ANS:
2.5 yrs, or 2 yrs 6 months

PTS: 1
20. ANS:
\$1,585

PTS: 1

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