Test 11 Review 4 You draw two marbles
Test 11 Review
4. You draw two marbles from a bag containing 3 red marbles and 6 blue marbles. What is the probability that both marbles are red?
Answer: 1/12
2. A cube 10 cm on edge can hold a liter of water. A foot is about 30 cm. How many liters of water can a cube 30 cm on edge hold?
Answer: 27 Liters
6. The rectangle shows the boundary within which the space capsule is expected to land. The circle represents the 5 mile range from the recovery ship. What is the probability that a capsule landing within the rectangular region also lands within the circular region? Express in terms of pi.
Answer: π/12
1. Gloria completed the 120 mile trip at a rate of 60 miles per hour. Returning home, there was more traffic and she averaged 40 miles per hour. Find Gloria’s average speed for the round trip.
Answer: 48 mph
5. The 4 painters can complete the job in 15 hours. How long will it take 5 painters to complete the job, if they all work at the same pace?
Answer: 12 hours
7. Imelda has a credit card that charges 1. 5% interest per month on the unpaid balance. Her unpaid balance is $1, 500. The minimum payment is $30. If she pays only the minimum, then a. How much interest does she pay? b. How much is her remaining balance?
Answer: a) $22. 50 b) $1492. 50
8. Find the volume of the barn.
Answer: 7500 feet cubed
3. A kilogram is about 2. 2 pounds. A cube of water 30 cm on edge weighs about how many pounds?
Answer: 59. 4 pounds
9. Find the exterior lateral surfaces of the barn, which excludes the area of the roof and floor.
Answer: 1100 feet squared
10. A model of the barn is a scale of 1 to 10. what is the volume of the model in cubic feet?
Answer: 7. 5 feet cubed
11. The value of a car declines 20% per year. What percent of the original value remains after 2 years?
Answer: 64%
14. The box and whisker plot of scores from a recent test shows that ¾ of the scores were at or above what score?
Answer: 82
___ 12. Express 0. 5 as a reduced fraction.
Answer: 5/9
13. How much money is 16 2/3 % of $12. 96?
Answer: $2. 16
15. The graph of y = 3 x – 5 passes through which of these points?
Answer: B
16. Write a variable expression for the are of a rectangle with length 2 x – 1 and width x + 3.
Answer: 2 2 x + 5 x - 3
18. Solve for x. x/18 = 12/2. 7
Answer: 80
19. Simplify. √ 8√ 24
Answer: 8√ 3
20. Simplify (-12) – (-5)(6) (-2)(-3)
Answer: 3
2 17. Solve for x. x + 16 = 25
Answer: ± 3
On her first three quizzes Jenna average 8 correct answers. On the next two quizzes she averaged 9 correct answers. What decimal number shows Jenna’s average score on all five quizzes?
Answer: 8. 4
The factory has a rush order. Two machines can complete the order in 48 hours. How many machines are needed to complete the order in 8 hours?
Answer: 12 machines
A $10, 000 investment grows in value at a compound rate of 10% per year. What is the value of the investment in three full years? (Hint: Look at Investigation 10)
Answer: $13, 310
Ten slips of paper numbered 1 through 10 are placed in a hat. Two slips are drawn from the hat without replacement. What is the probability that both numbers drawn are less than 4?
Answer: 1/15
A 2 Liter bottle of water has a mass of about how many kilograms
Answer: 2 kg
A rectangle has vertices at (0, -2), (2, 0), (-1, 3), and (-3, 1). What is the area of the rectangle?
Answer: 12 units squared
Solve for x. 3 x + 2(x – 1) = x + 10
Answer: 3
Solve for x. 2 x – 9 = 16
Answer: ± 5
Simplify √ 2 √ 4 √ 6
Answer: 4√ 3
What is the volume of a square pyramid with a base that has 6 inch sides and a height of 4 inches?
Answer: 48 inches cubed
What is the volume of a soup can that has a height of 10 cm and a base diameter of 8 cm?
Answer: 502. 4 cm cubed
- Slides: 63