Expressions and Equations
Geometry
The Number System
Ratios and Proportions
Statistics and Probability
100
Simplify 5(x + 3)
5x + 15
100
What is the volume of a rectangular prism 6 cm long, 3 cm wide, and 6 cm high?
108 cubic cm
100
Explain how to find the sum -5 + -8?
Add the absolute values of the two numbers (5 + 8) and take the negative sign (-13). Start at -5 on the number line. Count 8 to the left. End up at -13.
100
At a class car wash, middle schoolers was 16 cars in 2 hours. What is the unit rate of cars per hour?
8 cars in 1 hour
100
A baseball team has 9 boys and 4 girls. Each week the coach chooses one of them to be the umpire. what is the probability the coach will choose a girl?
4/13
200
Simplify -3(-5 - x) + 6(-x + 10)
-3x + 75
200
If a plane intersects a cylinder parallel to the base, what geometric figure if formed?
A circle.
200
What is 16/24 as a decimal? (no calculator)
0.6 repeating 0.6666666666666666666666666666666...
200
Trevor gets $1250 per month plus a commision of 5% of his monthly sales. His sales at the end of the month are $10350. how much is his total pay for the month?
$1767.50
200
A shipment consists of 5000 books. A manager chooses 100 books at random. She finds that 15 books have pages that are upside down. How many books of the shipment are likely to have this same problem?
750
300
Sakira has been walking laps to practice for a competition, and she has been keeping track of her practice laps. On Monday, she walks 10 laps in 8 minutes. On Tuesday, she walks 24 laps in 19 min and 12 sec. On Wednesday, she walked 15 laps in 12 minutes. Write an equation Sakira can use to predict the distance traveled for any number of minutes.
d = 1.25t, where d = # of laps and t = # of minutes
300
A plane intersects a square pyramid perpendicular to the base. What geometric shape is formed?
A triangle
300
The seventh grade students of Boulder MS are packing 150 boxes of books to send to children in poor countries. they have packed 2/3 of the boxes. How many boxes are left to pack?
50
300
In 2010, the school district employed 525 teachers. In 2011, the number of teachers was 480. what is the percent of increase or decrease?
8.57% decrease
300
Angela tosses a number cube onto a black and red checkerboard. What is the probability that it will land with a value greater than 2 on a red square?
1/3
400
Marta's business marks up prices on the chairs it sells. She buys s chairs from her supplier. She marks up the chairs by 45%. Which expression gives her selling price for one chair?
1.45s
400
Marisa measures the deck on the outside of the house and makes a scale drawing with a scale of 1 cm:6 m. The actual deck is 18 m long. How long is it in the drawing?
3 cm
400
George has a recipe that calls for 3 and 1/4 c of flour for every 1 and 1/4 c of water. He accidentally adds 2 and 1/2 cups of water. How much flour must he add for the recipe to come out correctly?
6 and 1/2 or 6.5 cups
400
Three pounds of tomatoes cost $8.07, 4 pounds cost $10.76, and 6 pounds cost $16.14. Write an equation which gives the total cost y of x pounds of tomatoes.
y = 2.69x
400
What is the difference between experimental and theoretical probability?
theoretical is what should happen mathematically and experimental is what does happen when the sample space is created through an experiment.
500
Zena and Audrey are on the same bowling team. The sum of their averages is 299. If Zena's average is 13 pins greater than Audrey's average, what is Zena's average?
156
500
The area of a circle is 25 pi square inches. What is the circumference of the circle?
10 pi inches OR 31.4 inches
500
Rosa has $432.50 in her checking account. She deposits $50 and then withdraws $25.46 two times. What is her balance?
$431.52
500
Four firends have dinner at a restaurant. the total bill is $65.00. They want to leave a 15% tip divided equally among the four of them. What is the best estimate (rounded to the nearest half dollar) of the share of each person's tip?
About $2.50
500
If you roll a number cube 150 times, what is the experimental probability that you will roll a number less than or equal to 4? (express your answer as a percent rounded to the nearest tenth)
66.7%
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