Topic 1
Choose Yes or No to tell whether each number is a rational number.
.090909...
Yes, because this number repeats.
Noah ran 21/2 miles in 3/5 hour. How many miles is Noah traveling per hour?
4 1/6 miles/hour
What two things must be true of a graph when representing a proportional relationship?
1. Go through the origin
2. Make a straight line
The Johnson family buys a new car that has a sales price of $25,000. If the car dealer requires a minimum down payment of 15%, what is the minimum down payment the Johnsons must pay for their car?
$3,750
The sales tax rate is 8.25%. If $1.65 in tax was added to the price of an item, what was the original price of the item?
$20.00
Choose Yes or No to tell whether each number is a rational number.
4.13789...
No, this number does not terminate or repeat.
Emily ran 33/4 miles in 5/6 hour. How many miles is Emily traveling per hour?
4 1/2 miles per hour
The ratio of the number of shirts printed and the time it takes is 1:5. If it takes 25 minutes to print the shirts, how many shirts were printed?
5 shirts
AJ predicted that 227 students would attend the school dance. The actual number was 250. By what percent did the estimate vary from the actual turnout?
9.2%
The sales tax rate is 8.25%. How much tax is added on an item that costs $64?
$5.28
Choose Yes or No to tell whether each number is a rational number.
-56
Yes, because this number terminates.
The table shows the relationship between a hedgehog’s weight loss and the number of days it has spent in hibernation.
Days in Hibernation Weight Loss (oz)
8 0.24
28 0.84
75 2.25
93 2.79
How much weight would the hedgehog lose during 80 days in hibernation?
2.4 oz
The graph represents the resting heart rate of a student.
What does the ordered pair (4, 6) represent in this situation?
(See graph)
6 heart beats in 4 seconds
Last year, 625 students attended Jamie’s school. This year, 590 students attend the school. What is the percent decrease in the school population?
5.6% decrease
Pants cost $10 and shirts cost $12 each. The sales tax rate is 6.5%. Which expression represents the total cost of p pants and s shirts?
A. 10p + 12s
B. 0.065(10p + 12s)
C. 1.065(10p + 12s)
D. -1.065(10p + 12s)
C. 1.065(10p + 12s)
If you multiple or divide a "+" with a "+" or a "-" with a "-" then your answer will always be ______
+
Emily goes to a hardware store to buy wire. The table shows the relationship between the cost and the length of wire. Emily needs 144 inches of wire. How much will she spend on wire?
Length in Inches (x) Cost in $ (y)
120 4.80
135 5.40
150 6.00
175 7.00
$5.78
The graph represents the resting heart rate of a student.
Does this represent a proportional relationship?
(See attached graph)
Yes; the line goes through the origin (0,0) and makes a straight line.
A light bulb manufacturer must make sure the light bulbs work before packing them for sale. Out of the 1,200 light bulbs tested 90 were defective. What percent of the light bulbs were defective?
7.5% light bulbs were defective
Jake opened a savings account that earns 1.5% simple interest. If his account earned $240 in interest over ten years, how much was Jake’s initial deposit?
$1,600.00
A jewelry company loses $450 as a result of a delivery delay. The 9 owners of the company must share the loss equally. What integer represents the change in profit for each owner?
A loss of $50 profit for each owner
A cookie recipe calls for 2 eggs and 1 stick of butter. A bakery has 36 eggs and 36 sticks of butter. How many batches of cookies can be made?
18 batches
The graph represents the resting heart rate of a student.
What is the linear equation represented by the graph?
A. y = 4x + 6
B. y = 6 + 4x
C. y = 1.5x
D. y = 0.66x
(See attached graph)
C. y=1.5x
The selling price of an item is $650, marked up from the wholesale cost of $450. What is the percent markup?
44.4...% markup
Jane earns 5.5% commission on the selling price of each home she sells. She earns $9,020 in commission on the sale of a home. What was the selling price of the home?
$164,000.00