Numbers and Operations
15.6 + (-1.8)
13.8
2x + 12 = 50
x = 19
A propeller rotates 6 times every 15 seconds. Based on this information, which of the following could NOT be true?
A. The propeller rotates 30 times in 90 seconds.
B. The propeller rotates 24 times in one minute.
C. The propeller rotates 18 times in 45 seconds.
D. The propeller rotates 12 times in 30 seconds.
A. The propeller rotates 30 times in 90 seconds.
A tile backsplash is being installed. The installation fee is $150.00. The tile is priced at $2.75 per square foot, f. Which equation best represents the total cost, c, of the backsplash?
A. c = 150f + 2.75 B. c = 2.75 – 150f
C. c = 2.75f + 150 D. c = 152.75f
C. c = 2.75f + 150
Mr. Hawkins is covering a wall with wallpaper. The rectangular wall measures 14 feet by 12 feet. Each square foot of wallpaper costs $2.90. Find the cost of covering the wall with wallpaper.
487.20
(5/8) / (3/4)
5/6
15x + 60 < 240
x < 12
Marie purchased a $49.00 gift for a baby shower. She uses a coupon that offers 20% off. How much will Marie spend on the gift after the coupon?
$39.20
Which situation best represents the equation y=2.5x ?
A. John has $2.50 more in his savings than his brother Sam.
B. Two cartons of eggs ring up at the register for $2.50.
C. A bank account is opened with a balance of $5, and $2.50 is deposited each day.
D. Meg pours 2.5 ounces of water onto the plant’s soil each day.
D. Meg pours 2.5 ounces of water onto the plant’s soil each day.
A square has a side length of 6 inches. It is enlarged and the new side length is 18 inches. What is the scale factor?
A. 3 B. 1/3
C. 12 D. 1/12
The record low temperature in Fargo, ND is -35F. The record high is 114F. What is the difference in the record high and the record low temperatures?
149F
A plumber charges $55 for a service call, plus $35 per hour. Which of the following equations best represents the number of hours a plumber was at a service call if he charged $160?
A. 55 + 35x = 160 C. 90x = 160
B. 55x + 35 = 160 D. 55 - 35x = 160
A. 55 + 35x = 160
A box of cereal weighs 14 ounces and costs $2.66. What is the price per ounce of the cereal?
A. $0.14 B. $0.19
C. $0.21 D. $0.24
D. $0.19
As the x-value increases by 3, the y-value increases by 12.
A. Find the rate of change
B. Write an equation to represent the relationship between the x and y-values.
A. k = 4
B. y = 4x
Troy made a scale drawing of the Statue of Liberty which has an actual height of 305 feet. He decides to use a scale in which 1 inch represents 25 feet. What is the height in inches of Troy’s drawing?
12.2
A class is organizing a going-away party for one of their students. They spend $26.38 on decorations, $78.92 on food, and $34.50 on a gift. If there are 15 students in the class who agreed to split the cost evenly, then how much does each person owe?
$9.32
A fifteen passenger van is rented for a family vacation. The van rental is $75.00 per day, plus a $160.00 insurance fee. Which inequality could be used to find x, the number of days the van can be rented if they want to spend less than $760.00 on the van rental?
A. 75.00 + 160.00x < 760.00
B. 75.00x + 160.00 > 760.00
C. 75.00 + 160.00x > 760.00
D. 75.00x + 160.00 < 760.00
D. 75.00x + 160.00 < 760.00
A local flower shop sells a dozen roses for $12.85. Based on this information, which of the following could be true?
A. $38.55 for four dozen roses
B. $64.25 for five dozen roses
C. $25.70 for 18 roses
D. $32.13 for two dozen roses
B. $64.25 for five dozen roses
Which of the following situations represents a proportional relationship?
A. A cheeseburger is $7.95 plus $1.00 for each additional topping.
B. A pool fills at a rate of 90 gallons per hour.
C. A health club charges a $40.00 membership fee plus $25.00 per month.
D. A bank account begins with $350.00 and gains $30.00 per month.
B. A pool fills at a rate of 90 gallons per hour.
A hula hoop measures 14 inches from the center to the outside. What is the distance around the hula hoop?
A. 21.98 in B. 175.84 in
C. 43.96 in D. 87.92 in
D. 87.92 in
There are 48 people in a gym class. How many people in the gym class are running?
5/8 of the people are in a spin class
1/3 of the people are lifting weights
The remaining people are running
3 people are running
If x = -1, then which of the following equations makes a true statement?
A. 4x + 9 = 20
B. -4x – 5 = -15
C. -3x + 15 = 18
D. -5x – 15 = -22
C. -3x + 15 = 18
Joey is 4 feet 8 inches tall. There are 2.54 centimeters in 1 inch. What is Joey’s height in centimeters?
A. 142.24 centimeters B. 152.4 centimeters
C. 157.48 centimeters D. 172.8 centimeters
A. 142.24 centimeters
Gasoline is priced at $3.39 per gallon. Write an equation to represent the total cost, y, of purchasing x number of gallons.
y = 3.39x
The circumference of a tire is 96 inches. Determine the radius of the tire. Use 3 for π.
16 in2