Integer Operations
27
Simplify:
4y + 6 + 9 + 2y
6y + 15
Solve for w:
6w + 3 = 27
w = 4
Which measure of center can be found in a box and whisker plot?
Median
Today the population of Colorado is roughly 6 million people. In 2004, the population of Colorado the population was roughly 4.6 million people. What is the percent change in population and is it an increase or a decrease?
30.4% increase
(-11) - 5
-16
Simplify:
0.5(8x - 15)
4x - 7.5
Solve for y:
-3y > 27
y < -9
What is the special name for the perimeter of a circle?
The circumference of the circle
You estimate the weight of a bag of apples at the grocery store to be 3.7 lbs. The bag actually weighs 4 lbs. What is the percent error of your estimate.
7.5% error.
(0.3/4)
4 + (-7)
-3
Simplify:
-2x + 6y + 3x - 4 + 10y
x + 16y - 4
Solve for x:
2/3x = 12
x = 18
Triple points possible!!!
Name as many qualities of an unbiased sample as you can (there are 3)
- Randomly Collected
- Large Enough
- Representative of the Population
A shirt that normally sells for $18 is on sale for 20% off. What is the sale price of the shirt?
$14.40
(-73) - (-73)
0
Simplify:
-5x + 2(4x - 10) - 8
3x - 28
Solve for m:
-3(6 + m) = -30
m = 4
Two students surveyed the school to learn about their shoe sizes. After the data was compiled into box and whisker plots, student A found their IQR to be 3 and student B found their IQR to be 7. What does this tell you about their data?
Student B found a wider variety of responses to their survey.
An electronics store purchased external hard drives from a supplier for $75 each. If they plan to mark the price up by 25% to turn a profit, what should they sell the drives for?
$93.75
-14
Factor using the greatest common factor
6x - 24
6(x - 4)
Solve for k:
-2k + 7 ≤ 29
Double Points Possible!!!
What do we call a probability experiment with multiple events? And what is one way we can represent those events?
- Compound Event
- Sample Space Table/Tree Diagram
You go shopping and find a type of cereal you like on clearance. The sale sticker on it says it costs $1.50 for the box and that it is on sale for 60% off. What was the original price of the cereal?
$3.75