Quiz about Math 7 Final Exam - Spring 2025

Question 1

For the past 5 months, Marissa recorded the change in dollar amount on her electric bill per month. Month Change per Month ($) July +18.02 August +1.03 September -0.44 October -6.84 November -1.19 What is the total change in her monthly electric bill over 5 months?

Accepted Answer

$8.52

Answer

$10.58

Answer

$16.83

Answer

$27.52

Question 2

For each hat she knits, Kate computes her costs as 2 bundles of wool yarn at $5.49 each and labor costs of $8.79. Kate wants to sell her hats for a price that represents a 40% to 50% profit above these costs. Which of these represents a reasonable price for which to sell her hats to ensure a profit within this range?

Accepted Answer

selling 31 hats to a boutique for a total of $865

Answer

selling 11 hats online for a total of $235

Answer

selling 4 hats to a neighbor for a total of $140

Answer

selling 13 hats at a craft fair for a total of $460

Question 3

Molly's family has $3,000 set aside for an upcoming vacation. The family plans to spend 3/5 of this amount on gasoline for the drive and motel rooms along the way and 1/2 of the remainder on meals. How much does Molly's family plan to spend on meals?

Accepted Answer

$600

Answer

$900

Answer

$1,200

Answer

$1,500

Question 4

Select the expression equivalent to (6x + 5) - (4x - 6).

Accepted Answer

2x + 11

Answer

2x - 1

Answer

10x + 11

Answer

10x - 1

Question 5

Which of the following expressions are equivalent? Select all that apply.

Accepted Answer

4(x - 4y) and 4x - 16y

Accepted Answer

-2(5x + 2x) and -14x

Accepted Answer

7(6x - 1) and 42x - 7

Answer

-6(4x - 3) and -6x

Answer

-3(3x + 5) and -9x + 5

Question 6

The figure shows the unit lengths of each of the four sides of a quadrilateral. What is the perimeter of the figure, in units?

Accepted Answer

12x - 1

Answer

12x - 21

Answer

9x - 21

Answer

9x - 1

Question 7

Martha found a dress at the store that costs p dollars. An 8% sales tax must be added to the cost of the dress. Select all the expressions that can be used to determine the cost of the dress with the sales tax.

Accepted Answer

1.08p

Accepted Answer

p(1 + 0.08)

Accepted Answer

p + 0.08p

Answer

1.8p

Answer

p + 0.08

Question 8

Which statement describes the error the student made in simplifying the equation?

Accepted Answer

The student missed a double negative 9x = -3x - (-y) in step 2.

Answer

The student subtracted 3x when he or she should have added 3x in step 3.

Answer

The student should have kept the y on the right hand side in step 5.

Answer

The student should have only multiplied the x by -3 in step 1.

Question 9

What is the solution to the equation shown? 0.3(x - 1.5) = 3.3

Accepted Answer

6.0

Answer

9.5

Answer

12.5

Answer

16.0

Question 10

What would be the total cost if Lee rented 7 movies this month?

Accepted Answer

$19

Answer

$14

Answer

$21

Answer

$37

Question 11

Sierra wants to buy a new bike.

The bike she likes is on sale for 40% off its original price.

Her parents agree to pay for $75 of the cost.

If the original cost of the bike is $200, how much money will Sierra have to save herself?

(No sales tax is charged.)

Accepted Answer

$45

Answer

$80

Answer

$75

Answer

$125

Question 12

Which of the following is equivalent to

63 - 3(2 - 10x) = 150?

Accepted Answer

120 - 60x = 150

Answer

120 - 10x = 150

Answer

-10x = 150

Answer

57 + 30x = 150

Question 13

What does the point (2, 3) on this graph represent?

Accepted Answer

2 pounds of bananas cost $3

Answer

2 pounds of bananas cost $1

Answer

3 pounds of bananas cost $5

Answer

3 pounds of bananas cost $2

Question 14

Missy bought her car for $27,000. Alice bought the exact same car for 7% less than Missy. How much less did Alice pay?

Accepted Answer

$1,890

Answer

$8,100

Answer

$18,900

Answer

$25,110

Question 15

At what average rate did the bathtub fill with water?

Accepted Answer

0.67 gallon per minute

Answer

0.6 gallon per minute

Answer

1.5 gallons per minute

Answer

3 gallons per minute

Question 16

What is the difference in the price per pound between apple A and apple B?

Accepted Answer

$0.40

Answer

$0.85

Answer

$1.25

Answer

$2.10

Question 17

A clothing store is having a sale where all shirts are 40% off and all pairs of pants are 30% off. Which of these are true? Select all that apply.

Accepted Answer

A. Michael buys a pack of four shirts on sale for $37.80. The pack of shirts was originally priced at $54.

Accepted Answer

D. Chantal buys a pair of pants for a sale price of $40.60. The pair of pantswas originally priced at $58.

Answer

B. Mary buys two shirts originally priced at $25. She will pay a total sale price of $35.

Answer

C. Jerry wants to buy one pair of pants originally priced at $40 and a shirt originally priced at $45. He will pay a total sale price of $55.

Question 18

A circular trampoline has a radius of 8 feet. To the nearest square foot, what is the area of the trampoline?

Accepted Answer

201 square feet

Answer

25 square feet

Answer

804 square feet

Answer

50 square feet

Question 19

Carly is organizing a game of darts for an upcoming family reunion. She has created a new target for the dartboard. The radius of the bull's-eye (the smaller circle) is 2 inches. Carly's target is shown below.

Accepted Answer

For every dart that lands on the target, there is a 4 in 81 chance of hitting the bull's-eye.

Accepted Answer

The area of the target is 20.25 times the area of the bull's-eye.

Accepted Answer

The circumference of the target is 4.5 times the circumference of the bull's-eye.

Answer

For every dart that lands on the target, there is a 4 in 49 chance of hitting the bull's-eye.

Answer

The area of the target is 4.5 times the area of the bull's-eye.

Question 20

A bag contains 10 red, 6 green, 12 orange, and 8 purple candies. Without looking, Ann pulls 1 piece of candy out of the bag. What is the probability she pulls out a purple piece of candy?

Accepted Answer

2/9

Answer

1/8

Answer

1/4

Answer

2/7

Question 21

A student is flipping a fair coin. His first two flips landed on heads while his next three flips landed on tails. What is the probability that the student's next flip will be tails?

Accepted Answer

0.50

Answer

0.40

Answer

0.60

Answer

1.00

Question 22

Billy and Tommy are playing a dice game with a six-sided die. Billy needs to roll a 5 or higher to win the game. What is the probability that Billy will roll a 5 or higher?

Accepted Answer

1/3

Answer

1/6

Answer

1/2

Answer

2/3

Question 23

The table lists the numbers of rolls of paper towels produced each day this week by two companies.

Accepted Answer

Wipe It Clean shows a wider variation in the numbers of paper towels produced than Paper Giant.

Answer

The workers at Wipe It Clean are more consistent than the workers at Paper Giant.

Answer

On average, Paper Giant produces more paper towels than Wipe It Clean.

Answer

The data for Paper Giant has a higher median than the data for Wipe It Clean.

Question 24

What is the probability of spinning the arrow once with the result being an even number greater than 5?

Accepted Answer

4/9

Answer

8/9

Answer

2/9

Answer

7/9

Question 25

Which inference is valid?

Accepted Answer

Factory B has less variability in production because the range for factory B is smaller than the range for factory A.

Answer

Factory B produced more tires than factory A because factory B has a mean of 109 and factory A has a mean of 104.2.

Answer

Factory A has less variability in production because the range for factory A is greater than the range for factory B.

Answer

Factory B produced more tires than factory A because factory B has a median of 112 and factory A has a median of 102.

Question 26

A factory employs part-time workers in two shifts, a day crew and a night crew. The box-and-whisker plots represent the number of hours worked per day for 100 workers who were selected at random from the two shifts.

Accepted Answer

The median and mean number of hours worked by the day crew are probably both less than the median and mean number of hours worked by the night crew.

Answer

The ranges for both the day crew and the night crew are the same, so both the median and the mean are probably the same as well.

Answer

The median number of hours worked by the day crew is less than the median number of hours worked by the night crew, but the mean is probably greater.

Answer

The range of the day crew is greater than the range for the night crew, so both the median and the mean are probably greater as well.

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