Addition and Subtraction
-9 + 17 = ?
8
True or False: When multiplying/dividing integers, if they have the same sign, your answer will be positive.
True
During one week, Shelly made several transactions. She starts with $120. She made 3 withdrawals of $20 each. She also used her debit card to for a $35 purchase. Then she deposited to $235. What is the final balance?
$260
Factor this expression: 12x + 8
4(3x + 2)
Solve for x:
4x + 12 = 20
x=2
10 - (-23) = ?
33
What is -3/4 x 1/8?
-3/32
The balance in John's account is $300. Which transaction would make the balance $0 in John's account?
Withdrawal of $300
Write an expression that is equivalent to
-5(-2x + 5y - 2)?
10x - 25y + 10
True/False: When given this inequality symbol (<), you use a closed circle to graph.
False
|-4 + -5| = ?
9
A fish descends beneath the water at a rate of 12 feet per second. What would be the depth of the fish after 8 seconds?
-96 Feet
Convert -5/9 to a decimal and a fraction.
-0.55 repeating , 55.55%
Combine like terms: 14x - 25y - 17x + 33y + 145
-3x + 8y + 145
George has $80. He spends $10 on lunch each day. After how many days will Jamal have $25 left?
5 or 5.5 days
Which of the following expressions give me a sum of zero?
a. -12 + -12
b. 7 + (-7)
c. 8 + 8
d. -1 + -1
B. 7 + (-7)
My friends and I have a check from a restaurant that was $175. If there are 8 people total, how much would each person have to pay?
$21.88
Jim drove his car 5 miles on Monday. On Tuesday, he drove 15% farther than Monday. On Wednesday, he drove 10% further than Tuesday. How far did he drive on Wednesday?
6.325 miles
Jessica purchased a skirt that costs d dollars. The total cost of the skirt, including a sales tax of 7%, can be represented by the expression 1.07d.
Which expression also represents the total cost of the skirt, including a sales tax of 7%?
a. d + 0.07d
b. d - 0.07d
c. d + 1.07d
d. d - 1.07d
A
Julie is selling bead bracelet kits. Each kit has 10 strings and a set number of beads. She sold 10 kits that had a total of 940 beads and strings. The following equation represents this situation.
10(x + 10) = 940
If x represents the number of beads in a kit, how many beads are in each kit?
x=84 beads
The temperature of Alaska is -7*. The temperature of Washington State is 8* warmer. Which of the following shows the correct equation? *For an extra 100 pts, draw it on the number line.
a. -7 + 8 = 1
b. -7 + 6 = -1
c. -4 + 2 = -2
d. 7 + -8 = -1
A. -7 + 8 = 1
What is another way I can write this expression?
4x(3x2)
(4x3)x(2)
An employee is starting a new job that makes $10,000 a year. His salary will increase by 5% at the end of each year. What will his salary be at the end of his second year?
$11,025
A gym charges a one-time membership fee of $15 plus $10 per month. Let m represent the number of months.
Which expression represents the total cost of the gym membership?
A. 15m + 10
B. 10m + 15
C. 15 + 10
D. 10(m + 15)
B
Solve and graph the inequality: 4x + 7 < 19
x<3
Graph should have open circle at 3 and go to the left.