Unit Test — Unit test Answers

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Shau-uen solved the equation . Her work is shown below.Step 1Step 2Step 3Step 4In which step did Shau-uen make her first error?

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A
Step 1
B
Step 2
C
Step 3
D
Step 4
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Which is the solution to the equation ? Round to the nearest hundredth if necessary.

Question illustration
A
0.63
B
4.75
C
10
D
76
23

Mr. Lopez wrote the equation on the board. Four students explained how to solve for g.Alyssa: “I added 32 and 8 to get 40, subtracted 10 to get 30, and then subtracted 30 from 150 to find the value of g, which is 120.” Rahul: “I added 32, 8, and 10 to get 50, and then I subtracted 150 to find the value of g, which is –100.” Toni: “I subtracted 18 from 32 to get 14, which I then divided into 150 to find the value of g, which is .” Wilhem: “I added 32 and 8 to get 40, subtracted 10 to get 30, and then divided both sides by 30 to find the value of g, which is 5.” Which student’s work is correct?

Question illustration
A
Alyssa
B
Rahul
C
Toni
D
Wilhem
24

Which equation and solution can be used to solve this problem?Twenty-two less than a number is twenty-four.

A
: Subtract 22 from both sides. The answer is 2.
Option A
B
: Subtract 22 from both sides. The answer is 2.
Option B
C
: Add 24 to both sides. The answer is 46.
Option C
D
: Add 22 to both sides. The answer is 46.
Option D
25

Which property can be used to solve the equation?

Question illustration
A
addition property of equality
B
subtraction property of equality
C
multiplication property of equality
D
division property of equality

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