Review for Unit 3

Review for Unit 3by Jennifer SkeltonMcCleskey MS#1In 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

#2Translate 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 answer36 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#4The 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 answer2.4#5Chris 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 answer7 + 7x = 17.50 x = 1.5

$1.50 per pair#6For which equation is x = -24 a solution?

2n + 5 = 1319 = -3p 8

24 = + 32 18 + = 12

m10y4#6 answer 18 + = 12y4#7Clay 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 answer6x + 8 = 50 x = 7

7 cards in each package#8Which equation does NOT have the same solution as 4.7 = -4.1x + 18

3h + 14 = 236w 11 = 33y 7 = 23z + 5 = 14#8 answer3y 7 = 2

#9What are the two steps used to solve the following equation:

- 15 = 2y8#9 answeradd 15, then multiply by 8#10The 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 answer17 5x = -3 x = 4

4 hours#11A 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 answer425 feet#12Order the numbers from least to greatest:

-1, , 0, -1, , -3#12 answer-3, -1, -1, 0, , #13Define absolute value#13 answerthe distance a number is from zero#14Give an example of a rational number that is not natural, whole, or an integer#14 answer.8, 1

(a decimal or a fraction)#15Simplify:

#15 answer3#16simplify:

#16 answer3#17simplify:

#17 answer-11#18Solve for the variable

#18 answerx = 324 #19Solve for the variable

#19 answerb = 63#20Solve for the variable

#20 answerm = 44#21Solve for the variable.

#21 answerc = -57#22Simplify

7x 12 (-4x) + 9#22 answer11x - 3#23Simplify

-3(x 5) + 4(-2 x)#23 answer-7x + 7#24Simplify.

7m + 5 m 7 if m = -3#24 answer-20#25Simplify.

8(6k 9) if k = -3#25 answer-216#26Solve for the variable.

-24 = -6t#26 answert = 4#27Solve for the variable.

a - (-39) = 84

#27 answera + 39 = 84 a = 45#28Solve for the variable.

-7m + 11 = -24

#28 answerm = 5#29Translate the following into an equation and solve:

Eddie started with 30 baseball cards. He gave 5 of his friends each an equal number of cards. He has 10 left. How many baseball cards did he give each friend.

#29 answer30 5x = 10 x = 4#30Arrange these in order from least to greatest.

- , 2, -1, 1, -2

#30 answer-2, -1, -, 1, 2 #31Arrange these in order from greatest to least in absolute value.

-32, 0, 35, -40, -15, and 39#31 answer-40, 39, 35, -32, -15, 0#32A treasure chest is buried 55 feet below sea level while a Goodyear Blimp is hovering 95 feet above sea level. How far above the treasure chest is the blimp?#32 answer150 feet