Quiz about 7th Math Midterm Ch 1 to Ch 11

Question 1

Find the value of 3²X 4

Accepted Answer

36

Answer

24

Answer

128

Answer

144

Question 2

What is 4527 written in scientific notation?

Accepted Answer

4.527 X 10³

Answer

4.527

Answer

4.257 X 10²

Answer

4.527 X 10⁴

Question 3

Which of these numbers is the greatest?

Accepted Answer

11,014,114

Answer

3,213,213

Answer

6.3 X 10⁶

Answer

7.8 X 10⁵

Question 4

What is this number written in word form? 4,139,000

Accepted Answer

Four million, one hundred thirty-nine thousand

Answer

Four thousand, one hundred thirty-nine million

Answer

Four billion, one hundred thirty-nine million

Answer

Four thousand, one hundred thirty-nine thousand

Question 5

Evaluate: 24-(5-3)⁴ / 4

Accepted Answer

2

Answer

4

Answer

20

Answer

22

Question 6

What is 70% written as a decimal?

Accepted Answer

0.7

Answer

0.07

Answer

7.0

Answer

70.0

Question 7

A pair of boots originally cost $124. Now they are on sale for 75% of the original price. What is the sale price of the boots?

Accepted Answer

$93

Answer

$31

Answer

$165

Answer

$496

Question 8

Pedro scored 17 out of 20 on a quiz. What was his score as a percent?

Accepted Answer

85%

Answer

68%

Answer

77%

Answer

80%

Question 9

Which of the following numbers is a composite number that is divisible by 3?

Accepted Answer

261

Answer

49

Answer

103

Answer

163

Question 10

Which of the following lists all factors of the number 18?

Accepted Answer

1,2,3,6,9,18

Answer

1,2,3,4,8,12

Answer

1,2,3,4,6,8,11

Answer

1,2,3,4,6,8,9,12

Question 11

Which number is missing from the following prime factorization expression?

132 = 2 x 2 x __ x 11

Accepted Answer

3

Answer

5

Answer

7

Answer

9

Question 12

Which expression represents the prime factorization of 276?

Accepted Answer

2 x 2 x 3 x 23

Answer

2 x 2 x 2 x 3 x 23

Answer

2 x 3 x 3 x 23

Answer

2 x 2 x 3 x 3 x 23

Question 13

Find the least common multiple (LCM) of 7 and 12.

Accepted Answer

84

Answer

7

Answer

12

Answer

72

Question 14

Factors of 15: 1, 3, 5, 15 Factors of 20: 1, 2, 4, 5, 10, 20

What is the greatest common factor (GCF) of 15 and 20?

Accepted Answer

5

Answer

15

Answer

1

Answer

20

Question 15

First 6 multiples of 3: 3, 6, 9, 12, 15, 18 First 6 multiples of 4: 4, 8, 12, 16, 20, 24

What is the least common multiple (LCM) of 3 and 4?

Accepted Answer

12

Answer

8

Answer

14

Answer

16

Question 16

What percent of 90 is 18?

Accepted Answer

20%

Answer

12%

Answer

24%

Answer

30%

Question 17

40% of what number is 52?

Accepted Answer

130

Answer

200

Answer

242

Answer

1300

Question 18

In the following proportion, what does y equal? y/4 = 39/30

Accepted Answer

5.2

Answer

156

Answer

13

Answer

1.4

Question 19

The ratio of boys to girls in the school chorus is 3:2. If there are 39 boys in the chorus, how many girls are in the chorus?

Accepted Answer

26 girls

Answer

36 girls

Answer

24 girls

Answer

58 girls

Question 20

In a garden, there are 5 tulip trees and 7 palm trees. Which ratio shows the number of tulip trees to the number of palm trees?

Accepted Answer

5/7

Answer

5/12

Answer

7/12

Answer

7/5

Question 21

Every 6 months, Andrea reads 10 novels. If she continues to read this many novels for every 6month period, how many months will it take for her to read 15 novels?

Accepted Answer

9 months

Answer

7 months

Answer

12 months

Answer

15 months

Question 22

The regular price of a handheld CD player is $36.00. It is on sale for 25% off. What is the amount of the discount?

Accepted Answer

$9.00

Answer

$3.60

Answer

$11.00

Answer

$12.40

Question 23

$67.50. It usually costs $90.00. What is the percent of discount?

Accepted Answer

25%

Answer

20%

Answer

30%

Answer

35%

Question 24

All batteries were listed on sale for 15% off the regular price. Keith usually pays $6.99 for a battery for his watch. What discount will Keith receive on his purchase of a new watch battery?

Accepted Answer

$1.05

Answer

$0.15

Answer

$0.80

Answer

$1.30

Question 25

Aaron borrowed $200 from his cousin. He promised to repay the loan in 2

years at a simple annual interest rate of 5%. How much interest will Aaron

owe at the end of 2 years?

Accepted Answer

$20

Answer

$5

Answer

$10

Answer

$25

Question 26

Howard earned $48 in interest after saving for 3 years at a simple annual interest rate of 2%. How much did Howard originally deposit?

Accepted Answer

$800

Answer

$288

Answer

$400

Answer

$1200

Question 27

A map has a scale of 1/2 inch to 4 miles. The shortest distance between two cities on the map measures 8 inches. If d represents the shortest distance between the two cities, what is d?

Accepted Answer

64 mi.

Answer

16 mi.

Answer

32 mi.

Answer

72 mi.

Question 28

The distance between two towns on a map is 9 centimeters. The actual distance between two towns is 63 kilometers. What is the scale on the map?

Accepted Answer

1 cm : 7 km

Answer

1 cm : 6 km

Answer

1 cm : 8 km

Answer

1 cm : 9 km

Question 29

Jessica sends 252 text messages per week. At that rate, how many text messages does she send in 3 days?

Accepted Answer

108 text messages

Answer

36 text messages

Answer

84 text messages

Answer

756 text messages

Question 30

At an electronics store, a $165 television is marked up 110%. Trevor purchases the TV and must pay 6.5% sales tax. What is the total cost of this television at the store?

Accepted Answer

$369.02

Answer

$193.30

Answer

$299.48

Answer

$571.73

Question 31

A small business owner wants to compare how much she spent with how much money she earned. The table shows her expenses and income. If the expenses and income form a proportional relationship, what was the amount of income when she spent $300?

Accepted Answer

$1,200

Answer

$400

Answer

$600

Answer

$900

Question 32

. Mylo started making this graph to relate the number of hours he works with the amount of money he is paid. A point representing which information could be added to the graph to show a proportional relationship?

Accepted Answer

$36 for working 4 hours

Answer

$16 for working 2 hours

Answer

$40 for working 5 hours

Answer

$58 for working 6 hours

Question 33

Oliver traveled 124.25 miles in 3.5 hours at a constant speed.

What is the constant of proportionality in miles per hour?

Accepted Answer

35.5 mph

Answer

25.5 mph

Answer

30.5 mph

Answer

40 mph

Question 34

A machine in a factory can assemble 234 units in 3 hours. Matt wants to write an equation to represent this situation. He says that the independent variable is the number of units assembled; the dependent variable is the number of hours, and the constant of proportionality is 78.

What mistake did Matt make in finding the parts of the equation that represents this relationship?

Accepted Answer

He reversed the independent and dependent variables.

Answer

He found the incorrect constant of proportionality.

Answer

He multiplied the constant of proportionality by the dependent variable.

Answer

He multiplied the number of units by the number of hours instead of dividing.

Question 35

. The graph shows the relationship between the weight of a watermelon in pounds and the cost. What is the price per pound of watermelon?

Accepted Answer

$0.75

Answer

$0.25

Answer

$1.40

Answer

$7.50

Question 36

Which expression shows the sum of a number and its additive inverse?

Accepted Answer

10+(-10)

Answer

-10-10

Answer

10-(-10)

Answer

-10+(-10)

Question 37

Which is true about modeling a solution to an addition problem on a vertical number line?

Accepted Answer

When adding a negative number, you move down.

Answer

When adding a positive number, you move down.

Answer

Locating the sum is not necessary.

Answer

Locating the sum is the first step.

Question 38

In a competition, Kieran dove from the 10 meter platform to a depth of 1.5 meters.

What was the total distance Kieran traveled during her dive?

Accepted Answer

11.5 meters

Answer

10.5 meters

Answer

9.5 meters

Answer

8.5 meters

Question 39

What is the sum of a number and its additive inverse?

Accepted Answer

0

Answer

1

Answer

-1

Answer

undefined

Question 40

What is the product of - 9.56 x 8.5?

Accepted Answer

81.26

Answer

73.06

Answer

73.06

Question 41

A jewelry store was recently opened. The first week, the store had a loss of $427. The second week, the store had a loss of $120. What was the total loss for the two weeks?

Accepted Answer

-$547

Answer

$307

Answer

Answer

$647

Question 42

A fish descended 3 feet each minute. Which expression should be used to find the total

depth of descent in 5 minutes?

Accepted Answer

5(-3)

Answer

5(3)

Answer

-5(-3)

Answer

-5(3)

Question 43

There were 512 cups of water in a cooler before a soccer game. After the soccer game there were 384 cups of water in the cooler. There are 16 cups in a gallon.

Which one of the following statements is true?

Accepted Answer

The quotient 128/16 = 8 means that 8 gallons of water were used during the soccer game.

Answer

The quotient 512/16 = 32 means that 32 gallons of water were used during the soccer game.

Answer

The quotient 384/16 = 24 means that 24 gallons of water were used during the soccer game.

Answer

The quotient 384/512 = 3/4 means that 3/4 gallon of water was used during the soccer game.

Question 44

Let c represent how much it costs for one person to go to a baseball game. How can we represent the total cost for 6 people to go to the game?

Accepted Answer

6c

Answer

c-6

Answer

c/6

Answer

c+6

Question 45

Which expression represents 12 times a number, n, minus 6?

Accepted Answer

12n - 6

Answer

12 - 6n

Answer

12 + n - 6

Answer

12n -6n

Question 46

The formula for perimeter of a square with side length s is P = 4s.

If the length of each side of the square is tripled, how is the perimeter affected?

Accepted Answer

The perimeter is three times as great.

Answer

The perimeter remains the same.

Answer

The perimeter is nine times as great.

Answer

The perimeter is twice as great.

Question 47

Which of the following values of n will result in a true statement when substituted into the given equation? 2n + 4 = 12

Accepted Answer

n = 4

Answer

n = -1

Answer

n = 0

Answer

n = 6

Question 48

Solve the equation -3 + 7n = 39 for n.

Accepted Answer

6

Answer

2

Answer

8

Question 49

Solve the equation 3p + 10 = 28 for p.

Accepted Answer

6

Answer

2

Answer

4

Answer

7

Question 50

Solve. 35 + 0.25x = 53.75

Accepted Answer

x = 75

Answer

x = 140

Answer

x = 215

Answer

x = 250

Question 51

The perimeter of this isosceles triangle is 47 cm. What is the length of each of its legs?

Accepted Answer

17.5 cm

Answer

15 cm

Answer

19.5 cm

Answer

35 cm

Question 52

Trina spent $30 for general admission at an amusement park. Each ride cost $2.50. She spent a total of $67.50. What arithmetic steps can you use to find how many rides Trina rode?

Accepted Answer

Subtract 30 from 67.5, divide the difference by 2.5.

Answer

Divide 67.5 by 2.5, add 30 to the quotient.

Answer

Add 67.5 and 30, divide the sum by 2.5.

Answer

Multiply 30 by 2.5, subtract 67.5.

Question 53

Niles bought 4 packs of baseball cards. He also spent $14 for a notebook to hold the baseball cards. He spent a total of $23. Niles wrote and solved the equation 4x + 14 = 23 to find the cost of each pack of baseball cards. Which of the following is true?

Accepted Answer

Niles spent $2.25 on each pack of baseball cards.

Answer

Niles could subtract 14 from 23 to find the cost of each pack of baseball cards.

Answer

Niles could divide 14 by 4 to find the cost of each pack of baseball cards.

Answer

Niles cannot use arithmetic to find the cost of each pack of baseball cards.

7th Math Midterm Ch 1 to Ch 11

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