MATH 304 MATHEMATICS 7 PER CENTS & INTEREST



Write solutions on notebook paper - reduce Fraction answers to lowest terms.

1. Complete the chart:

 

Fraction Decimal

Per Cent

1a. ? ? 32%
1b. ? .45 ?
1c. 1/8 ? ?
1d. ? ? 125%
1e. ? .008 ?
1f. 17/40 ? ?


2. What is 5/6 as a per cent? Write it three
different ways.

3. Find 26 per cent of 140.

4. What is 5.5% of 270 ?

5. What per cent of 23 is 11.2 ?

6. 43.52 is 17% of what number?

7. What is 1/4 % of 86 ?

8. What is 475% of 132 ?

9. Lulu got a raise of $80 , which was 7.2% of her old salary. What was her
new salary?

10. After adding 7% sales tax, a puzzle cost $49.22 . What was the original price?

11. After deducting 28 per cent for taxes and insurance, Duffy's take-home pay was $69.48 . What was the original "gross" pay?

12. Which produces a HIGHER SELLING PRICE for a store manager: A.) a 10% markup followed by a 10% discount, B.) a 10 % discount followed by a 10% markup, or C.) neither -- the results are the same.

13. If Jay's age is 25 per cent of Kim's, then Kim's age is what per cent of Jay's.

14. Igor purchased a stereo from the manufacturer for $450. He used a 120 per cent markup to establish his advertised price (at Igor's Electronics). A newspaper coupon gave customers 20 per cent off. Because of the holidays, the cashier then took an additional 15 per cent off after the coupon was honored. How much profit did Igor make (in BOTH MONEY AND AS A PER CENT)?