Quiz about Chapter 8 Review

Question 1

Ms. McNeil buys 2.4 gallons of gasoline.
The total cost is $7.56. The equation
2.4p = 7.56 can be used to find the price p in dollars of the one gallon of gasoline. What is the price of one gallon of gasoline?

Accepted Answer

$3.15

Answer

$1.81

Answer

$2.40

Answer

$5.16

Question 2

Solve for x.

x + 4 = 20

Accepted Answer

16

Answer

15

Answer

17

Answer

24

Question 3

Find the value of c in this equation:

c - 8 = 42

Accepted Answer

50

Answer

34

Answer

8

Answer

42

Question 4

The sum of n and 6

Accepted Answer

n + 6

Answer

n/6

Answer

n X 6

Answer

n - 6

Question 5

A(n) ______________ is a statement that two mathematical expression are equal

Accepted Answer

equation

Answer

inverse operation

Answer

solution of an equation

Answer

expression

Question 6

Solve for x:

Accepted Answer

x = 10

Answer

x = 20

Answer

x = 7

Answer

x = 3

Question 7

Aaron wants to buy a bicycle that costs $128. So far, he has saved $56. The equation
a + 56 = 128 can be used to find the amount a in dollars that Aaron still needs to save. What is the solution of the equation?

Accepted Answer

a=72

Answer

a=64

Answer

a=132

Answer

a=184

Question 8

Determine whether the given value of the variable is a solution of the equation.
x - 24 = 58; x = 82

Accepted Answer

yes

Answer

no

Question 9

Solve the equation:
3x = 27

Accepted Answer

x = 9

Answer

x = 24

Answer

x = 81

Answer

x = 30

Question 10

Solve:

n - 5 = 32

Accepted Answer

37

Answer

32

Answer

27

Answer

36

Question 11

$$\frac{1}{2}\ +\ x\ =\ 15$$

Accepted Answer

$$14\ \frac{1}{2}$$

Answer

7.5

Answer

-7.5

Answer

$$15\frac{1}{2}$$

Question 12

$$\frac{3}{5}x=21$$

Accepted Answer

$$x=35$$

Answer

$$x=\frac{21}{5}$$

Answer

$$x=21\frac{3}{5}$$

Question 13

x + 12 = 20

Accepted Answer

x = 8

Answer

x = 32

Answer

x = -32

Answer

x = -8

Question 14

What is a variable?

Accepted Answer

an unknown number

Answer

A number equal to 1

Answer

a number that is shy

Question 15

What does inverse mean?

Accepted Answer

The opposite

Answer

Addition

Answer

Subtraction

Answer

change it to a positive

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