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# Mat 045 test 4 review

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### Mat 045 test 4 review

1. 1. MAT 045 Test 4 Review(Ch. 9, NROC Units 9 & 10)Name ______________________________________ Date ________________ Show all work in order to receive full credit. Calculator use not allowed.--------------------------------------------------------------------------------------------Graph the numbers on a number line. 1) -7, -5, -3, -1 ,0, 3Write < or > between the pair of numbers to make the statement true.2) –9 - 4 2)______________3) 0 -7 3) ______________4) 3 0 4) ______________5) -8 2 5) _____________Simplify the absolute value expression.6) |5| 6) _____________7) |-18| 7) _____________8) -|17| 8) _____________Write true or false for the statement.9) -|-56| < 0 9)______________10) |-49| > -|-19| 10)_____________11) -|-12| > -|-10| 11) ____________Add by using the number line.12) -5 + (6) 12)____________13) -14 + (-10) 13)____________
2. 2. Give the additive inverse of the number.14) 6 14)_____________15) -7 15) _____________Follow the order of operations to work the problem.16) 16 + (-7) - (-6) - 16 + 20 16)______________17) |-22 + 19| - 16 + 14 17)______________18) -23 - (-1 - 10) – 6 18)______________Multiply.19) -7 · (-18) 19)_____________20) -5(0) 20) _____________Solve the problem.21) At the local recycling center, employees are paid every two weeks. If Jeremywas paid \$11,440 last year, how much did he make each pay period? 21)_____________22) Mark had \$771 in his checking account. He wrote checks for \$52, \$36, and\$144. He then deposited \$141 from his paycheck. What is Marks new balance? 22)_____________
3. 3. Simplify.23) 69 - 4(5) + 285 ÷ (-15) 23)______________24) (-7)2 + (-4)2 - 7 24)______________Use the given values of the variables to find the value of the expression.25) -4x + 3y + 9a for x = -4, y = -3, a = 2 25)______________26) -5a(7x - 5y) for x = -1, y = -4, a = 2 26)______________A formula is given, along with values for all but one of the variables in theformula. Find the value of the variable that is not given.27) P = 2L + 2W; L = 3, W = 7 27)______________28) A = 1/2bh; b = 7, h = 14 28)______________Solve the equation.29) -3 = 9 + f 29)______________30) -4s = -48 30)______________31) 17z - 4 = 13z - 36 31) _____________
4. 4. 32) 5(x + 4) = -20 32)_____________33) -5(t - 3) = -15 - 20 - 10t 33)_____________Write the word phrase in symbols, using x as the variable.34) 15 less than a number 34) _____________35) 8 divided by a number 35) _____________36) The product of a number and 9 36) _____________37) A number subtracted from six times the number 37)_____________Solve the problem.38) If twice Toms age is increased by 26, the result is three times Toms age. Howold is Tom? 38)______________39) The attendance at the Sunday football game was four times the attendance atMonday nights game. In all, 78,000 fans attended the games. How many fansattended Sundays game? 39)______________40) The expression for figuring the average speed of a car is m/h, where m is thenumber of miles traveled and h is the number of hours traveled. Evaluate theexpression for a car that travels 472 miles in 8 hours. 40)_______________
5. 5. 41) A wire is cut into two pieces, with one piece 14 feet shorter than the other. Thewire was 66 feet before it was cut. How long is the shortest length of wire? 41)_______________42) A retail store had monthly sales of \$66,200 and spent 30% of it on advertising.How much was spent on advertising? 42)_______________43) Janet drove 486 kilometers and the trip took 9 hours. How fast was Janettraveling? 43)_______________44) Pennies are packaged 50 in a roll. A mother gave her son 192 pennies for hisbank and had 8 pennies left over. How many rolls of pennies did she use? 44)______________