Mat115-Test5-7

STUDENT NAME:SOLUTIONS

Cumulative Test 5-7 Answer Template

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Show work if possible

Final Answer

1.

How many sandwiches per person?

150/120 = 1.25 sandwiches per person

1.25 per person

2.

Are the fractions proportional?

4/13 = 8/26 cross multiply to get 104 = 104

YES

3.

Ratio of 20 to 18 in lowest terms.

20/18 reduces to 10/9

Remember, ratios are never written as mixed numbers.

10/9

4.

Are the rates equivalent?

(3/4)/6 = 9/73 convert both to decimal by dividing top by bottom then compare. 54.75 does not equal 54

No

5.

Ratio of booths to tables as a fraction.

7 booths to 20 tables = 7/20

7/20

6.

Write the proportion 5 is to 8 as 15 is to 24.

5/8 = 15/24

7.

Actual length of Laurens office.

3/8 = 6/n solve for n 3n = 48 n = 16 ft.

N = 16 ft.

8.

Are the fractions proportional?

2/5 = 6/15 cross multiply to get 30 = 30

Yes

9.

The unknown M = ?

8/52 = m/39 cross multiply and solve for m 52m = 312 now divide by 52 to get m = 6

M = 6

10.

Are the rates equivalent?

1.2/5 = 2.1/8 cross multiply to get 9.6 not equal to 10.5

No

11.

What is the monthly interest rate?

60/3000 = n/100 cross multiply and solve for n 3000n = 6000

Now divide by 3000 to get n = 2

N = 2%

12.

What is the interest earned?

OMIT

13.

Identify the base.

What number or the Unknown

14.

What is 60% of 240?

n/240 = 60/100

cross multiply and solve for n 100n = 14400 n = 144

N = 144

15.

2.85 as a percent

To convert to a % just multiply by 100. 2.85 x 100 = 285

285%

16.

Identify the rate.

27%

17.

What is the selling price?

500 x .20 = 100 is 20% now add that to the original amount

500 + 100 = 600

$600

18.

Rewrite using percent notation.

50%

19.

Complete the statement.1ft = 12 inches so 12 ft = 12x12 = 144

12 ft = 144 in.

20.

Square root of 144.

12

21.

Classify the angle.

Right

22.

Measure of < DEF.

< DEF = 180 degrees

23.

Use a metric unit of VOLUME.

Liters

24.

A line or...