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Mathematical Reasoning Quiz 5 (25 MCQs)

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1. Shelagh and Luana realized that they could express their ages more specifically if they used fractions. Doing this will allow them to calculate the difference in their ages more precisely. If Shelagh describe her age as 15 1/2 years old and Luana is 7 7/12 years old, what is the difference in their ages?
2. _____ prime numbers have two factors.
3. The mayor of Flandville, Ohio, wants to know how much the population of her city has changed from 1975 to 2015. In 1975 the population was 120, 000. In 2015 the population was 95, 000. What was the percent decrease in the population from 1975 to 2015?
4. _____ trapezoids are isosceles trapezoids.
5. To raise funds for a charity drive, Danielle convinced 40 businesses to each pledge todonate $ 10 per month for 6 months.Which expression equals the total number of dollars pledged for the charity drive?
6. _____ animals can sing.
7. A seed company filled 7 bags with seed. They put 80 grams of seed in each bag. How many grams ofseed are there in all the bags combined?
8. It takes 10 days to mow a 140-acre park using a tractor that is available only 4 hours perday.If the same amount of acreage is mowed each day, how many acres per hour must bemowed?
9. Math helps us understanding the world around us by giving us ways to describe it (for example with data).
10. Which of the following numbers is the second smallest in the group595, 795, 123, 600, 825
11. Solve the linear equation:3(x-2) = 15
12. If a skydiver with mass m, in kilograms, jumps from a plane, the maximum speed she will attain in free-fall (v), in meters per second, is given by the formula v=$\sqrt{39.2m}$ Approximately what is the maximum speed, in meters per second, of a skydiver weighing 60 kilograms?
13. A house has a large window made of 15 equal-sized pieces of glass, each the same size and shape. There are 3 pieces of glass that are cracked. If a rock thrown by a lawn mower hits the window, what is the probability that the rock hits a piece of glass that is cracked?
14. A sales supervisor assigns Asha, Bella, Cameron, Donnell, and Ernesto to work the cashregister on a rotating daily basis.The rotation begins with Asha on the first day andcontinues in alphabetical order, as shown in the pattern below, which uses their initials.A, B, C, D, E, A, B, C, D, E, _____ Who is assigned to work the cash register on the 46th day?
15. Which figure has exactly one pair of parallel sides?
16. All triangles have three sides.Is this a true statement or a false statement?
17. Determine if the sentence is a statement not statement. What is the sum of 3 and 6?
18. What is the hypothesis of the following statement: "If Johnny is late to school, then his mom will have to drive him."
19. A triangle that does not contain a right angle has one side that measures 15 cm andanother that measures 6 cm.What is the measure, in centimeters, of the third side of the triangle?
20. A club wanted to double its membership. It recruited 6 new members, but that was 10 shortof the club's goal. How many members were in the club before the new members joined?
21. What is the exact answer obtained when 76402 is divided by 12
22. The smallest number which when divided by 20, 25, 35 and 40 leaves a remainder of 14, 19, 29 and 34 respectively is
23. Some mammal live in water.Is this a true statement or a false statement?
24. Determine whether each of the following sentences is a statement or not a statement. (-3) = 27
25. Three unbiased coins are tossed, what is the probability of getting at least 2 tails?
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