AnswersSS-Math 7Cumulative Exam

Cumulative Exam — Cumulative exam Answers

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This graph models the number of teachers assigned to a school, as determined by the number of students. What is the constant of proportionality?Number of Teachers

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
2
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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
3

Which expression is equivalent to 2w?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
4

A circular rug has a radius of 3 ft. What is the circumference of the rug? Use 3.14 for .

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A
9.32 ft
B
9.42 ft
C
18.64 ft
D
18.84 ft
5

What is the measure of ?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
6

Jakob simplified the expression as shown. What was Jakob’s error in subtracting the expressions?

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H
He used the commutative property incorrectly.
H
He used the distributive property incorrectly.
H
He used the associative property incorrectly.
H
He simplified the x coefficients incorrectly.
7

Forty percent of the sheets of construction paper are secondary colors. There are 25 sheets of construction paper. How many of those sheets are secondary colors?Secondary-Color Construction Paper10%10%10%10%10%10%10%10%10%10%

A
8
B
10
C
12
D
15
8

Which method correctly solves the equation using the multiplication property of equality and the reciprocal of ?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
9

Which equations are equivalent to ? Select three options.

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A
m = StartFraction 10 over 4 EndFraction
Option A
B
m = negative StartFraction 10 over 4 EndFraction
Option B
C
m = negative five-halves
Option C
D
StartFraction 11 over 4 EndFraction + m = negative one-fourth
Option D
E
Negative five-fourths + m = negative StartFraction 15 over 4 EndFraction
Option E
10

What is the value of x?

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4
42
4
48
9
90
1
132
11

At a jeans factory, a random quality check found 8 pairs defective and 292 pairs with no problems. How many defective pairs can be expected in the inventory of 3,000 pairs of jeans?

A
80 pairs
B
82 pairs
C
292 pairs
D
375 pairs
12

What is the product of ?

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–
–81
–
–1
1
1
8
81
13

A clothing shop is offering a 12 percent discount for senior citizens. Which equation represents the discount price?

A
discount price = 1 - (original price)(0.88)
B
discount price = (original price)(1 – 0.12)
C
discount price = (original price)(0.12)
D
discount price = 1 – (original price)(0.12)
14

Kyoko is reading a book by her favorite author. She read the first 20 pages in of an hour. Reading at the same pace, Kyoko wants to determine if she’ll have enough time to finish the book before she has to go to bed.Reading TimeAccording to the graph, which statement must be true?

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I
It will take her 2 hours to read 60 pages.
I
It will take her 3 hours to read 120 pages.
I
It will take her 4 hours to read 180 pages.
I
It will take her 5 hours to read 210 pages.
15

best

–
–0.32
–
–0.02
0
0.02
0
0.32
16

Talia gave her hairdresser a 20 percent tip, which amounted to $7. PercentsTotal 100% What was the price of the service before the tip?

$
$1.40
$
$35.00
$
$42.00
$
$140.00
17

smallest

1
10%
2
20%
2
25%
3
30%
18

Lenore borrowed $400 to pay for car repairs. She needs to pay it back in 2 years with simple interest. Lenore wants to figure out the interest rate of her loan. What additional information does she need to find the interest rate?

p
principal
a
amount of time
i
interest she will owe
t
the type of car repairs
19

What is the circumference of the circle? Use for .

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A
44 cm
B
66 cm
C
132 cm
D
154 cm
20

Which of the following values could represent the probabilities of complementary events?

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a
and
Option a
2
28% and 82%
a
and
Option a
1
10% and 80%

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