JEOPARDY7.1

Ratios7.2

Proportions7.3/7.4

FractionalEquations

7.5Percent Basics

7.6 Percent

Word Probs

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200 200 200 200 200

300 300 300 300 300

400 400 400 400 400

Ratios 100

Write in simplest form:

18

0.5

Ratios 100 answer

36

1

Ratios 200 Write in simplest form:

35 minutes: 7 seconds

Ratios 200 answer 300:1

Ratios 300

The ratio of pigs to cows on the farm is 6:7. There are 39 pigs and cows total on the farm. How many cows are there?

Ratios 300

answer:

21 cows

Ratios 400 Three numbers have ratio 4:6:9 and sum to 47.5. Find the largest number.

Ratios 400 answer

The largest number is 22.5.

Proportions 100

Every proportion can be solved by ___.

Proportions100 answer cross multiplying

Proportions 200

True or False:

14/29 and 15/31 make a proportion.

Proportions 200 answerFalse

Proportions 300

1.

5 8

x xSolve

Proportions 300 answer

x = 5/3

Proportions 400

10 1Solve .

4 1

x

x x

Proportions 400 answer:1st: Cross multiply

2nd: Solve by factoring

Solution:x = 5, x = 2

or

{5, 2}

Fractional Equations 100

Find the LCD:

x - 5 x 1

x + 3 3 x

Fractional Eqns 100 answer

3x(x+3)

Fractional Equations 200

Solve 23 9

a a

Fractional Eqns 200 answer

{9}

Fractional Equations 300

0.05 6.6 0.06

Find the LCD and solve

x x

Fractional Eqns 300 answer

100

60

LCD

x

Fractional Equations 400

r 1

Solve 12r + 4 2r

Fractional Eqns 400 answer

1st: Find the LCD. (2r + 4)

2nd: Multiply through by the LCD.

3rd: Solve for r.

r 11

2r + 4 2

2 2 4

.

6

r

r r

etc

r

% Basics 100Write as percents:a) 0.9b) 0.0068c) 13/100

% Basics 100 answer

a) 0.9 = 90%b) 0.0068 = .68%c) 13/100 = 13%

Find 13% of 9.

% Basics 200

% Basics 200 answer:Find 13% of 9.

(0.13)(9) = 1.17

13% of 9 = 1.17

% Basics 300What percent of 30 is 2?

% Basics 300 answer

(30) 210030 200

200

30

6.6

2 6.67% 30

x

x

x

x

is of

What percent of 30 is 2?

% Basics 400

a) What is the new price Bob will pay for an $80 hat if it gets discounted 20%?

b) What will the final price be if he must pay 5% sales tax?

% Basics 400 answers

a) What is the new price Bob will pay for an $80 hat if it gets discounted 20%?80 – (0.20)80 = 80 – 16 = $64Bob will pay $64.

b) What will the final price be if he must pay 5% sales tax?64 + 64(0.05) = 64 + 3.20 = $67.20The final price after tax is $67.20

More Percents 100

Jack bought a dog for $300. It won several championships at dog shows and appreciated to $500. What was the percent increase in value of the dog?

More Percents 100 answer

Jack bought a dog for $300. It won several championships at dog shows and appreciated to $500. What was the percent increase in value of the dog?

%

100

200

300 100

20000 300

20000

300

66.6

67% .

change

original

x

x

x

x

This is increase

More Percents 200

Jill earned $600 last year on an account earning 4.75%. How much had she invested originally?

More Percents 200 answer

Jill earned $600 last year on an account earning 4.75%. How much had she invested originally?

0.0475 600

600

0.0475$12,631.58

x

x

x originally invested

More Percents 300

Lou saved money by buying a CD on sale

for $6.36. If the original price was $7.95,

what was the percent of the discount?

More Percents 300 answer

7.95 6.36

7.95 100

20

20%

x

x

discount

More Percents 400

Pug invested $6000 in two accounts: part in account A earning 6% and another part in account B earning 11%. If Pug earned $580 total for the year, how much was invested in each account?

More Percents 400 answer

Pug invested $6000 in two accounts: part in account A earning 6% and another part in account B earning 11%. If Pug earned $580 total for the year, how much was invested in each account?

$1600 invested in account A; $4400 invested in account B

JEOPARDY (handout)

7.1 Ratios 7.2 Proportions 7.3/7.4

Fractional Equations

7.5 Percents 7.6 More Percents

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