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Date Submitted: 07/17/2009 06:31 PM
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...