8 divided by 2
4
I bought 8 pencils for $3.20. My friend bought 3 pencils for $1.20. Are these proportional?
Yes. Each spending $0.40 per pencil.
Perimeter is measured in what type of units?
cm, m, inches (not squared or cubed)
A graph represents a proportional relationship IF the line is a straight line AND _____
passes through the origin (0,0)
72 divided by 8
9
Solve:
53 + z + 18 = 180
z = 109
What is a rational number?
A number that can be expressed as a fraction
What is the area of a rectangle with a width of 3w and a length of 4?
A = l x w
A = 12w
-5 + 8 = ? (no calculator!)
3
2 x 11
22
solve 4(2b + 2) - 3
8b + 5
what place value is the 8 in 945.47892
thousandths
100 divided by 10
10
Bob can travel 175 miles in 5 hours. What is his unit rate in miles per hour?
35 miles per hour
Simplify:
3s + 3 + 2s - 9 = ?
5s - 6
simplify 16/30
8/15
what place value is the 0 in 1,746.4450
ten thousandths
12 x 2
24
10 x 9
90
How can you solve a proportion?
cross multiply, then divide/ butterfly method
2/3(0.8)
16/30
1/2 + 7/4
9/4
What does the "b" represent in y = m x + b?
y intercept/ starting point/ initial value
find a: a - 9 = 15
a = 24
In the formula I = Prt, what do the letters stand for?
Interest, Principal, rate, time
What is Mrs. Hall's dog's name?
Stella
Who is the best sub at BMS?
Mrs. Krebs!!
10x - 8x + 2 + 10
2x + 12
6(4m + 7)
24m + 42
Area is measured in what type of units?
squared
What is the sample space of a probability question?
All of the possibilities
The library started with 12 students signed up for a program. After several weeks, they had 15. What's the percent of increase?
25%
90 divided by 9
10
How do you express 76% as a fraction? (don't simplify)
76/100
What is the mode?
most common number (can be no mode, or more than 1 mode)
What does unit rate mean?
the amount for ONE
49 divided by 7
7
8 x 4
32
Does the table represent a proportional relationship? How do you know?
Yes (ex. the ratio of mules to bales of hay is 2 to 1 in each scenario)
What is the mean?
average/ add all numbers, divide by the number of numbers
5m + 8 + 3m + 7
8m + 15
Solve:
2x - 7 = -6
x = 1/2
How do you express probability? What is the correct notation?
P ( ) =
What does the word product imply?
multiplication
5 divided by 20
4
What is the MAD?
find the mean, find the distance each point is from the mean, then find the average of those numbers
what place value is the 3 in 456.9376
hundredths
81 divided by 9
9
Find the area of a triangle with a base of 3cm and a height of 8cm.
(1/2) 3 x 8 = 12 cm squared
-14 - (-3) =
-11
Sarah buys 3 pencils for $4.50. At this same rate, how much would 5 pencils cost?
$7.50
What is -3(5)(-6) ?
90
What's the additive inverse of -45.20?
45.20
negative times negative....
positive
What is "slope intercept form"?
y = m x + b
I bought a shirt for $32.50. The state has a sales tax of 6%. What is the total cost of the shirt after tax rounded to the nearest cent?
$34.45
4x - 2x + 3x
5x
1 divided by 1
1
Lily paid $6 for 3/8 lb of nuts. What is the cost of 1 lb?
$16
Evaluate a - b if a = 8.54 and b = -4.31.
12.85
What is the IQR?
Q3 - Q1 = IQR
25 divided by 5
5
Solve:
15n - 25 > 150
n >11.67
77 divided by 7
11
Absolute value
distance the number is from 0 (trick: make it positive)
5/6 x 4/7
20/42
5 divided by 5
1
______ is another name for unit rate.
constant of proportionality
What does the "m" represent in the equation y = m x + b?
Slope, rate of change, rise/ run
Solve:
(2/3)x = 266
x = 399
solve 8(2k + 1 + 3k)
40k + 8
A pair of shoes is originally $65.40. I have a coupon for 20% off. How much are the shoes after the discout?
$52.32
63 divided by 9
7
solve 3(m - 5) + m
4m - 15
simplify 20/42
10/21
45 divided by 5
9