Quiz about Unit 4 Review: Numeric and Algebraic Expressionss

Question 1

Select the expression that is equivalent to 6(3m + 9)

Accepted Answer

18m + 54

Answer

9m + 15

Answer

18m + 9

Answer

3(m+ 12)

Question 2

Completely factor the following expression using the distributive property:

28 + 36

Accepted Answer

4(7 + 9)

Answer

14(2 + 3)

Answer

2(15+ 18)

Answer

6(4+ 6)

Question 3

A variable is a symbol, usually a letter, used to represent an unknown number.

Accepted Answer

True

Answer

False

Question 4

Select all expressions equivalent to 32 + 40x using the distributive property.

Accepted Answer

8 (5x + 4)

Accepted Answer

4 (8 + 10x)

Accepted Answer

2 (16 + 20x)

Answer

5 (6 + 8x)

Question 5

Evaluate the following expression $$\left(\frac{1}{3}\right)^3$$

Accepted Answer

1/27

Answer

1/9

Answer

3/9

Answer

1/3

Question 6

Evaluate the expression.

(5.2 + 7.3) - 12

Accepted Answer

0.5

Answer

5.1

Answer

0.05

Answer

1

Question 7

A temperature given in degrees Celsius, C, can be converted to degrees Fahrenheit by using the expression below.

1.8C + 32

If the temperature is 35 degrees Celsius, what is the value in degrees Fahrenheit?

Accepted Answer

95

Answer

36.835

Answer

63

Answer

68

Question 8

Amy drove at a rate of x miles per hour. Uma drove half the rate of speed that Amy drove. Which expression represents the rate of speed at which Uma drove?

Accepted Answer

$$\frac{x}{2}$$

Answer

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

Answer

$$x\ -\ \frac{1}{2}$$

Answer

2x

Question 9

Evaluate the expression.

$$\left(6\ -3\right)^2\div9$$

Accepted Answer

1

Answer

1/3

Answer

3

Answer

15

Question 10

Use the expression below to answer the following question:

6x - 12

If the coefficient is multiplied by 3, what is the new expression?

Accepted Answer

18x - 12

Answer

12x - 12

Answer

6x - 36

Answer

18x - 24

Question 11

Evaluate the following expression:

[10 - (5+3)] x 7

Accepted Answer

14

Answer

56

Answer

26

Answer

62

Question 12

The cost of n movie tickets, in dollars, is given by the expression shown.

8n + 2

How much will 6 movie tickets cost, in dollars?

Accepted Answer

50

Answer

89

Answer

48

Answer

100

Question 13

Emma had 8 pennies and Tana had 6 pennies. Each girl found a strategy for finding the number of pennies they had together. Emma used 8 + 6 and Tana used 6 + 8. Which statement is true about the strategies the girls used?

Accepted Answer

Both Emma and Tana are correct because of the commutative property of addition.

Answer

Only Emma is correct because of the zero property.

Answer

Only Tana is correct because of the identity property of addition.

Answer

Neither Emma nor Tana is correct because of the associative property of addition.

Question 14

Which expression represents 3 times the sum of x and 7?

Accepted Answer

3(x+7)

Answer

3 + 7x

Answer

3x + 7

Answer

3x + 7x

Question 15

Sunday brunch at a local restaurant costs $12.94 per person. Let n represent the total number of people eating brunch together. Which expression could be used to find the cost of brunch for an entire group?

Accepted Answer

12.94n

Answer

12.94 + n

Answer

$$12.94\div n$$

Answer

12.94 - n

Question 16

Which of the following correctly shows the associative property of multiplication?

Accepted Answer

a x (b x c) = (a x b) x c

Answer

a(b + c) = (a x b) + (a x c)

Answer

a x b = b x a

Answer

a x 0 = 0

Unit 4 Review: Numeric and Algebraic Expressionss

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