Expressions in One Variable

Question 1

The expression 15n + 2(3p) represents the amount Isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. Which statement is true about the amount Isaiah spent?

Revolt · Accepted Answer

He bought 15 gallons of gasoline.

Question 2

Alexis bought x boxes of cereal for $3 each, including tax, and paid with a $20 bill. Which expression represents the total amount of change she should receive?

Revolt · Accepted Answer

20 – 3x

Question 3

What is the coefficient in the expression shown? 42 + 2c

Revolt · Accepted Answer

2

Question 4

How many terms are in the expression shown? 2n + 5 – 3p + 4q

Revolt · Accepted Answer

4

Question 5

A cell phone company charges $40 per month for unlimited calling, and $0.20 per text message sent. If t represents the number of text messages Roxy sent last month, which expression represents the cost of her bill last month before any taxes or additional fees?

Revolt · Accepted Answer

40 + 0.2t

Question 6

Javier used the expression below to represent his score in a game of mini-golf.3x + x + 5 – 2xIf he simplifies the expression, which statements are true about the parts of the simplified expression? Select three options.The constant is 2. The coefficient is 2.The constant is 5.The coefficient is 5.There are two terms.

Revolt · Accepted Answer

The coefficient is 2.; The constant is 5.; There are two terms.

Question 7

When x = 5, the value of the expression –2(x – 10) is

Revolt · Accepted Answer

9

Question 8

What is the value of the expression when n = 3?

Revolt · Accepted Answer

22

Question 9

What is the value of + 2x2, when x = 3?

Revolt · Accepted Answer

20

Question 10

If x represents the amount Rita earns each week, which expression represents the amount she earns in a year?

Revolt · Accepted Answer

52x

Expressions in One Variable Answers

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