Ch
Problem SolvingVariables and ExpressionsWrite the correct answer.1.Sharon reads for 45 minutes each day. Write an expression for the number of minutes she reads in d days.Solution:45 min in 1 day45 d min in 1 d days45d min in d days2.The minimum wage in 2003 was $5.15. This was w more than the minimum wage in 1996. Write an expression for the minimum wage in 1996.(Hint: Was the minimum wage more or less in 1996?)Use the table below to answer questions 3–5. Select the best answer.StateYear Entered into UnionFlorida1845Indiana1816Pennsylvania1787Texas1845West Virginia18633.North Carolina entered the Union x years after Pennsylvania. Which expression shows the year North Carolina entered the Union?A1845 xB1845 xC1787 x4.The expression f 26 represents the year Alabama entered the Union, where f is the year Florida entered. In which year did Alabama enter the Union?F1819G1826H18375.The number of states that entered the Union in 1889 was half the number of states s that entered in 1788. Which expression shows the number of states that entered the Union in 1889?A2sBs 2Cs 2Answer Key EquationsVARIABLES AND EXPRESSIONSPractice A2.y less than 53.the quotient of n and 44.10 increased by t5.the product of 3 and s6.c 27.5m8.89.410.311.1612.813.a.j 4b.11 years old; 16 years old; 54 years oldProblem Solving2.5.15 w3.C4.F5.BSolving Equations by Adding AND SubtractingPractice A2.+9; +9; t 233.+6; +6; p 44.; 45.6; 6; p 46.21; 21; x 47.x 18 86; x 68; The score on the second test was higher than the first, so the score on the first test should be less than 86.8.x 4 29; 33°F; The actual temperature was lower than expected, so the expected temperature should be greater than 29°F.Problem Solving2.184; 23; 23; 23; 2073.A4.F5.B6.GSolving Equations by Multiplying AND DividingPractice A2.3 7; n 213.3 5; t 155.p 106.m 17. 63; 252 students8.4s 64; 16 mmProblem Solving2.10; 10; 2.53.A4.H5.BSolving Two-Step and Multi-Step EquationsPractice A1.2; 10; 22.3; 8; 43.21; 9; 35.x 5.46.r 237.y 38.b 249.y 310.7x 6 5x11.12; 612.12x; 8413.x; 714.55°; 35°Problem Solving2.4p; 4; 4; 2.93.C4.F5.BSolving Equations with Variables on Both SidesPractice A1.2a; 3; 10; 52.4r; 9; 43.5b; 30; 5b; 3b; 104.6; c 13; c 195.2; x 36.a. 8 2h 2 5hb. 2 hoursc. $12Problem Solving2.1200; 2030; 290d; 7 ................
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