AnswersGrade 7 MathematicsN/A

Practice Exam Answers

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Which explains whether or not Merrida has described a proportional relationship, and why?

A
Merrida has described a proportional relationship. It is linear and does not pass through the origin.
B
Merrida has not described a proportional relationship. It is not linear and does not pass through the origin.
C
Merrida has described a proportional relationship. It is linear and the line passes through the origin.
D
Merrida has not described a proportional relationship. Although it passes through the origin, it is not a linear relationship.
2
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One-half of cars travel at which speeds?

A
between 120 and 170 mph in race A; between 125 and 165 mph in race B
B
between 120 and 153 mph in race A; between 125 and 145 mph in race B
C
between 165 and 170 mph in race A; between 150 and 165 mph in race B
D
between 120 and 143 mph in race A; between 125 and 140 mph in race B
3

Each serving of a cereal is 80 calories. Which expression can be used to find the number of calories in 3 servings?

A
3 divided by 80
B
80 divided by 3
C
80 times 3
D
80 minus 3
5

Which event has a probability other than 1 half ?

A
flipping a coin with the result of tails
B
choosing a red card from a standard deck of cards (a standard deck has 52 cards 26 of which are red)
C
rolling an even number on a number cube that is numbered from 1 to 6
D
choosing a vowel from a bag of tiles that contains one of each letter of the alphabet
6

Johnny rode his bike 4 sevenths of a mile from his house to the lake on a straight path. Then, he turned around and rode his bike 3 and 1 eighth miles in the opposite direction. About how far is Johnny from his house?

A
1 and 1 half miles
B
3 miles
C
2 and 1 half miles
D
2 miles
7

Maggie’s bank has assigned her a temporary 3 -digit PIN to use with her ATM card. Each digit is a number from 1 to 5 , inclusive, and no digit can be used more than once in the PIN. Which multiplication problem can be used to determine the probability that the PIN she was assigned was 123 ?

A
1 fifth times 1 fifth times 1 fifth
B
1 fifth times 1 fourth times 1 third
C
4 fifths times 4 fifths times 4 fifths
D
4 fifths times 3 fourths times 2 thirds
9

What is the product of 3 fourths and negative 6 sevenths ?

A
negative 7 eighths
B
negative 9 over 14
C
9 over 14
D
7 eighths
10

The student store sells pencils that have a markup of 120 percent above their wholesale cost of 0 point 5 0 dollars each. They also charge sales tax of 8 percent. What is the total cost of a pencil from the student store?

A
1 point 1 9 dollars
B
1 point 1 0 dollars
C
0 point 6 4 dollars
D
0 point 6 5 dollars
11

Geraldo wants to start a group bike ride on Sunday mornings for students at his school. He asked 30 students in the lunchroom how many miles they ride their bikes each month. He obtained the following results. 8 comma 3 comma 0 comma 1 comma 2 comma 3 comma 6 comma 3 comma 0 comma 4 comma 13 comma 1 comma 3 comma 12 comma 15 comma 2 comma 1 comma 3 comma 2 comma 2 comma 0 comma 3 comma 4 comma 2 comma 6 comma 7 comma 12 comma 8 comma 4 comma 0 The fraction x over 30 shows the ratio of the number of students who ride their bikes more than 10 miles each month to the number of students surveyed. What is the value of x ?

A
4
B
3
C
5
D
2
12

Water flowed out of a tank at a steady rate. A total of 18 and 1 half gallons flowed out of the tank in 4 and 1 fourth hours. Which expression determines the quantity of water leaving the tank per hour?

A
17 fourths divided by 37 halves
B
17 fourths divided by 36 halves
C
37 halves divided by 17 fourths
D
36 halves divided by 17 fourths
13

Using the order of operations, what should be done first to evaluate 6 plus the fraction with numerator open paren negative 5 minus 7 close paren and denominator 2 minus 8 times 3 ?

A
Subtract 7 from negative 5 .
B
Add 6 and negative 5 .
C
Multiply 8 and 3 .
D
Divide 7 by 2 .
14

What is the simplified value of the given expression? the fraction with numerator 4 times open paren negative 8 plus 4 point 5 close paren and denominator 6 point 2 5 plus negative 8 point 2 5

A
negative 25
B
7
C
25
D
negative 7
15

A $120 wagon is on sale for 15 percent off. What is the sale price of the wagon?

A
$108
B
$102
C
$105
D
$18
16

The Nash family spent a total of 240 dollars on a hotel room for 3 nights. Which equation can be used to find c , the average cost per night for the hotel room?

A
240 times 3 is equal to c
B
240 divided by 3 is equal to c
C
c divided by 240 is equal to 3
D
c times 240 is equal to 3
18

Karim wants to buy a shirt that normally sells for 46 point 5 0 dollars It is on sale for 1 third off. How much does Karim need to pay to buy the shirt on sale?

A
15 point 5 0 dollars
B
22 point 5 0 dollars
C
41 point 5 0 dollars
D
31 point 0 0 dollars
19

Jillian is trying to determine what helium tank pressure she needs to fill balloons for the student council dance. Find the unknown numbers in the table until you find the best answer to the question. Which cylinder pressure will Jillian need if she plans to fill 90 balloons? Tank Pressure and Balloon Quantity Pressure in the helium cylinder (psi) Number of 9-inch balloons 100 30 150 ? 200 ? 250 ? 300 ?

A
150
B
250
C
200
D
300
20

Which value cannot represent the probability of an event occurring?

A
62 point 5 percent
B
0 point 0 1
C
2 over 85
D
1 point 1
21

Kristin wants to ask the managers of the fast food restaurants in a large city “How do you retain employees?” What condition must be true to justify surveying only a sample of the managers instead of surveying the entire population of managers?

A
The population is diverse.
B
The population is expensive and time-consuming to survey.
C
The population is not the target of the survey question.
D
The population is small.
22

Kiesha’s quality-control manager told her she must have 97 percent of her clocks functioning properly. She found a report that said 6 out of 300 clocks tested were not working properly. Kiesha predicts that she will have enough working clocks to please the manager. Which statements are true about Kiesha’s prediction? Choose three correct answers.

A
Kiesha’s experimental probability is 1 over 30 .
B
When the inventory is 4000 clocks, the prediction is that 3920 clocks will work.
C
Kiesha will not meet 97 percent because more than 3 percent of her clocks will be broken.
D
Kiesha’s experimental probability is 1 over 50 .
E
Kiesha will have more than 97 percent of the products working.
23

Mika taught her sister the steps for dividing a decimal by a decimal. Which instructions are correct?

A
1. Multiply the dividend by a multiple of 10 to create an integer. 2. Multiply the divisor by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.
B
1. Divide the dividend by a multiple of 10 to create an integer. 2. Divide the divisor by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.
C
1. Divide the divisor by a multiple of 10 to create an integer divisor. 2. Divide the dividend by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.
D
1. Multiply the divisor by a multiple of 10 to create an integer divisor. 2. Multiply the dividend by the same multiple of 10 as step 1. 3. Divide, and apply the rules for dividing signed numbers.

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