Number Systems
What is the definition of absolute value?
Absolute value is the distance a number is from 0.
Combine like terms: -18y + 22y =
= 4y
Are the following ratios proportional?
4 : 7 and 16 : 49
No
A student is randomly selected from a class of 32 students. There are 20 girls in the class. What is the probability that the selected student is a boy? WRITE YOUR ANSWER AS A PERCENT!!
38%
If two angles have a sum of 180 degrees, they are called..............
Supplementary Angles
- (4) - (-13) =
-4 - (-13) = 9
Use the distributive property to simplify the expression: -8( x + 5 ) =
= -8x - 40
Find the unit rate: 39 meters in 13 seconds
3 meters per second
Find the range of the following values: 17, 7, 11, 13, 2, 12, 7
Range: 17 - 2 = 15
If two angles sum to 90 degrees, what do we call them?
Complementary Angles
1/6 + 3/12 = ?
= 5/12
Solve for x...... 11x - 2 = 42
x = 4
Which is the better unit price? $4.00 for a 16-ounce bag of Doritos or $3.60 for a 12-ounce bag of Cheetos?
Doritos are a better deal.
A jukebox has 2 rock CDs, 5 country CDs, 7 R&B CDs, and 6 rap CDs. The jukebox randomly selects a CD to play. What are the odds the jukebox will not choose a rock CD? WRITE YOUR ANSWER AS A PERCENT!
90%
A trapezoid has a height of 8 cm, a bottom of 12 cm, and a top of 6 cm. What is the area?
72 cm2
(3/5)(4/9) = ? SIMPLIFY!!!!
= 4/15
x + 2 > 7
x > 5
16 / x = 2 / 3
What does x equal??
x = 24
2 friends are playing with a normal 52-card deck of cards. Monica and Rachel each take a card from the deck. Joey's turn is next. What is the probability that Joey will get a black card? WRITE YOUR ANSWER AS A DECIMAL.
0.5
A circle has a radius of 16cm. What is the circumference of this circle?
100.48cm2
(2/12) รท (8/3) = ? SIMPLIFY!!!
6/96 = 1/16
A 7th grader is taking his crush to the movies. He has $40 to spend. They go to the movies in the afternoon, when the tickets are only $8 each. If snacks are $4 each, how many snacks can he buy?
No more than 6 snacks.
x: 2, 5, 10, 12
y: 1.5, 3.75, 7.5, 9
k = ?
k = .75
Chandler is rolling a dice and flipping a coin. What is the probability he will land on an even number and land on heads? WRITE YOUR ANSWER AS A FRACTION.
1/4
What is the area of a circle with a diameter of 8m?
50.24m2