Quiz 1a Study Guide

Determine the variable in the expression.

9a - 7b + 3z 

• 3z

• -7b

• 9

• a

What word best describes the 5 in the following expression 4a² - 7b + 5?

 

• Coefficient

• Variable

• Constant

• Slope

Determine the coefficient in the expression.

 $7x+5^3$  

• 7

• x

• 5

• 3

Match the following

• one-third times a number plus 5

• 3x + 5

• five less than eight times a number

• 8x - 5

• one-third the sum of x and 5

• 5 more than the product of 3 and x

Shawn and his friends are going to the State Fair. They have to pay for parking and tickets for each person. In the expression 10t + 12, what does the 12 represent in the problem?

• Ticket price

• Total cost

• Number of tickets purchased

• Parking

Shawn and his friends are going to the State Fair. They have to pay for parking and tickets for each person. In the expression 10t + 12, what does the variable represent in the problem?

• Ticket price

• Total cost

• Number of tickets purchased

• Parking

AT&T charges $30 per month for phone service and a one-time activation fee of $25. What expression describes the scenario, where m = months?

• 30 - 25m

• 30m - 25

• 30 + 25m

• 30m + 25

Bob's Plumbing charges $15 per hour plus a service fee of $40 for coming out to your house. Which equation models this situation?

• y = 15x + 40

• y = 40x + 15

• y = 15x

• y = 15x - 40

Dexter's Gym charges a one-time registration fee of $40 and $20 each month. The total fee after x months is $340. Which equation models this situation?

• 40x + 20 = 340

• 20x + 40 = 340

• 20x - 40 = 340

• 20 + 340 = 40x

James deposited $300 into his account, He now has $3678. Write an equation to find how much was in his account before the deposit. Use x as the variable.