AnswersFL-1205040-MJ Grade 7 Mathematics A-CRUnit Test

Unit Test — Cumulative exam Answers

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Four spinners with distinct sections of equal area are spun 40 times. Which spinner is most likely to produce actual results closest to the predicted results?

A
a spinner with 2 sections
B
a spinner with 5 sections
C
a spinner with 8 sections
D
a spinner with 10 sections
42
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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)
43

For 6 consecutive days, Alejandro studied for 5 minutes more each day than he did the previous day. Which best represents the change in the amount of time that Alejandro studied on the first day to the amount of time he studied on the last day?

A
–30 minutes
B
–11 minutes
C
11 minutes
D
30 minutes
44

Tobie is estimating the sum of the expression -50+51.Which reasoning would lead Tobie to the right answer?

A
–50 + 50 is equal to -100 plus -1 is -101.
B
–50 + 50 is equal to zero plus -1 is -1.
C
–50 + 50 is equal to zero plus 1 is 1.
D
–50 + 50 is equal to 100 plus 1 is 101.
45

What are the steps for using integer tiles to evaluate the expression ?

Question illustration
A
Start with 15 tiles and separate them into 3 same-sized groups.
B
Start with 45 tiles and separate them into 15 same-sized groups.
C
Assemble 45 groups of 3 tiles each.
D
Assemble 45 groups of 15 tiles each.
46

A bag contains 1 blue, 2 green, and 3 red marbles, as shown.What is the probability of drawing a green marble out of the bag without looking?

Question illustration
A
StartFraction 1 over 6 EndFraction
Option A
B
One-fifth
Option B
C
One-third
Option C
D
One-half
Option D
47

Isaiah has $20 to spend on bowling. He has four bowling alleys to choose from, and the price each charges for a game is shown in the table.Prices at Four Bowling AlleysBowling AlleyPrice per GameA$4.25B$5.25C$3.75D$3.50Which can he afford?

A
4 games at bowling alley B
B
5 games at bowling alley C
C
5 games at bowling alley A
D
6 games at bowling alley D
48

Julio predicted that the average high temperature for January would be . The actual average high temperature was 4 degrees higher than Julio’s prediction. Which describes the actual average high temperature for January?

Question illustration
A
–11°C
B
–3°C
C
3°C
D
11°C
49

Matthew plots an integer on a number line that has an absolute value of 119. Gabrielle plots a different integer on the same number line that also has an absolute value of 119. Which two integers could Matthew and Gabrielle have plotted?

A
0 and 119
B
0 and –119
C
119 and –119
D
119 and 238
50

Laura determined the difference between 8 and –2 using the additive inverse. Her steps are shown below. Which best describes the error in Laura’s work?

Question illustration
A
The 8 should have remained positive.
B
The 2 should have remained negative.
C
The addition of –8 and 2 was computed incorrectly.
D
The 8 should have remained positive, and the 2 should have remained negative.

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