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# MDC MAT 0024 - Midterm Review

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MAT 0024MIDTERM REVIEWINSTRUCTOR M.BEYLIN NAME ________________________________Find the absolute value of the number.1)|4|2)|-24|Insert <, >, or = to make the statement true.3)-8 8Simplify the expression.4)5 · 5 - 25)72 - 4 · 76)36(6 - 3) - 632 - 3Evaluate the expression for the given replacement values.7)10x - 6yx + 14x = 9, y = 48)yz + 2x2x = 6, y = 16, z = 4Multiply or divide as indicated. Write the answer inlowest terms.9)97 · 1610)118 ÷ 316Add or subtract as indicated. Write the answer in lowestterms.11)16 + 13612)1120 - 716Simplify the expression by combining any like terms.13)-9m + 7 - 3 + 1 + m - 514)9a - 6a + a - 10Simplify the expression. First use the distributive propertyto remove any parentheses.15)(12z + 6) - (5z - 2)Solve the equation.16)8x - (2x - 1) = 217)2(2z - 4) = 3(z - 4)Write the following as an equation, using x for theunknown number. Then solve.18)When 3 times a number is subtracted from 7times the number, the result is 28. Find thenumber.119)If 4 times a number is added to -9, the result isequal to 13 times the number. Find thenumber.Solve the formula for the specified variable.20)I = Prtfor t21)P = a + b + cfor b22)P = 2L + 2Wfor LSolve. Round all amounts to one decimal place.23)73 is 20% of what number?24)150 is what percent of 96?25)60% of what number is 70?Solve the inequality. Graph the solution set and write it ininterval notation.26)15x - 35 > 5(2x - 11)27)9x + 24 ≤ 3(2x - 1)28)2x + 10 - 4x < 6 - 4x + 4The bar graph shows the number of tickets sold eachweek by the garden club for their annual flower show.Use the graph to answer the question.29)During which week were the greatest numberof tickets sold?30)How many tickets were sold in all?2The line graph shows the recorded hourly temperatures indegrees Fahrenheit at an airport. Use the graph to answerthe question.31)What temperature was recorded at 5 p.m.?32)At what time was the temperature 73°?Find the x- and y-coordinates of the following labeledpoints.33)x-8-6 -4 -2 2 4 6 8y8642-2-4-6-8ABx-8-6 -4 -2 2 4 6 8y8642-2-4-6-8AB34)x-8-6 -4 -2 2 4 6 8y8642-2-4-6-8GHx-8-6 -4 -2 2 4 6 8y8642-2-4-6-8GHDetermine whether the equation is a linear equation intwo variables.35)5y = x - 736)6x - 7y2 = 537)x = 4yFind three ordered pair solutions by completing the table.Then use the ordered pairs to graph the equation.38)y = 3x - 4x y01-1x-10-5 5 10y105-5-10x-10-5 5 10y105-5-103Graph the linear equation.39)2x = y - 7x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1040)4x + y = 0x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1041)y = 1x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1042)x = 5x-10-5 5 10y105-5-10x-10-5 5 10y105-5-10Identify the intercepts.43)x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1044)x-10-5 5 10y105-5-10x-10-5 5 10y105-5-104Answer KeyTestname: 0024 EXAMMID REVIEW1)42)243)=4)235)216)177)66238)769)31410)82711)73612)98013)-8m14)4a - 1015)7z + 816)1617)-418)7x - 3x = 28; 719)4x + (-9) = 13x; -120)t = IPr21)b = P - a - c22)L = P - 2W223)36524)156.3%25)116.726)(-4, ∞)-7-6 -5 -4 -3 -2 -1-7-6 -5 -4 -3 -2 -127)(-∞, -9]-12-11 -10 -9 -8 -7 -6-12-11 -10 -9 -8 -7 -628)(-∞, 0)-4-3 -2 -1 0 1 2 3 4-4-3 -2 -1 0 1 2 3 429)week 430)205 tickets31)76 ° F32)10 a.m.33)A(4, 3); B(-4, 6)34)G(2, -7); H(-6, 4)35)yes36)no37)yes38)x y0-41-1-1-7x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1039)x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1040)x-10-5 5 10y105-5-10x-10-5 5 10y105-5-105Answer KeyTestname: 0024 EXAMMID REVIEW41)x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1042)x-10-5 5 10y105-5-10x-10-5 5 10y105-5-1043)(1, 0), (0, 6)44)(1, 0), (0,

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