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Review for Unit 3. by Jennifer Skelton McCleskey MS. #1. In which quadrant are the following points: (-3, -2) (0, -7) (-4, -2) (-1, 8). #1 answer. (-3, -2): quadrant III (0, -7): y – axis (-4, -2):quadrant III (-1, 8): quadrant II. #2.
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Review for Unit 3 by Jennifer Skelton McCleskey MS
#1 In which quadrant are the following points: (-3, -2) (0, -7) (-4, -2) (-1, 8)
#1 answer (-3, -2): quadrant III (0, -7): y – axis (-4, -2):quadrant III (-1, 8): quadrant II
#2 Translate the following into an equation and solve: Steve started with 36 flowers. He gave 10 of his friends an equal number of flowers. He has 6 left. How many flowers did he give each friend?
#2 answer 36 – 10x = 6 x = 3
#3 -15, 5, 27, -30, 42, and -15 are temperatures that recorded as the high and lows over a three day period. Which temperature has the highest absolute value?
#3 answer -30
#4 The temperatures during a 5-day period in winter in Georgia were -7, 5, -4, 3, and 15. What was the mean temperature over the five day period?
#4 answer 2.4°
#5 Chris bought a hat for $7 and 7 pairs of socks. The total cost was $17.50. If each pair of socks cost the same amount, how much was one pair of socks?
#5 answer 7 + 7x = 17.50 x = 1.5 $1.50 per pair
#6 For which equation is x = -24 a solution? 2n + 5 = 13 19 = -3p – 8 24 = + 32 18 + = 12 y m 10 4
#6 answer y 18 + = 12 4
#7 Clay bought 6 packages of baseball cards. His friend Chip gave him 8 baseball cards. Clay now has a total of 50 baseball cards. How many cards were in the package?
#7 answer 6x + 8 = 50 x = 7 7 cards in each package
#8 Which equation does NOT have the same solution as 4.7 = -4.1x + 18 3h + 14 = 23 6w – 11 = 3 3y – 7 = 2 3z + 5 = 14
#8 answer 3y – 7 = 2
#9 What are the two steps used to solve the following equation: - 15 = 2 y 8
#9 answer add 15, then multiply by 8
#10 The temperature was 17 degrees Fahrenheit when Jennifer awoke. The temperature dropped 5 degrees per hour. How many hours did it take for the temperature to drop to -3 degrees Fahrenheit?
#10 answer 17 – 5x = -3 x = 4 4 hours
#11 A submarine is 100 feet below sea level while a helicopter is 325 feet above sea level. How far apart are the submarine and the helicopter?
#11 answer 425 feet
#12 Order the numbers from least to greatest: -1½, ½, 0, -1¾, ¾, -3
#12 answer -3, -1¾, -1½, 0, ½, ¾
#13 Define absolute value
#13 answer the distance a number is from zero
#14 Give an example of a rational number that is not natural, whole, or an integer
#14 answer .8, 1½ (a decimal or a fraction)
#15 Simplify:
#16 simplify:
#17 simplify:
#17 answer -11
#18 Solve for the variable
#18 answer x = 324
#19 • Solve for the variable
#19 answer b = 63
#20 • Solve for the variable
#20 answer m = 44
#21 • Solve for the variable.
#21 answer c = -57
#22 • Simplify 7x – 12 – (-4x) + 9
#22 answer 11x - 3
#23 • Simplify -3(x – 5) + 4(-2 – x)
#23 answer -7x + 7
#24 Simplify. 7m + 5 – m – 7 if m = -3
#24 answer -20
#25 Simplify. 8(6k – 9) if k = -3