Intermediate Algebra (11th edition)

(b)The enrollment at a community college declined from 12,750 during one school year to 11,350 the following year. Find the perc ...

13.Concept Check When a formula is solved for a particular variable, several different equivalent forms may be possible. If we s ...

26.As of 2009, the lowest temperature ever recorded in South Dakota was 58°F. Find the corresponding Celsius temperature. (Sourc ...

In the formula, u is the amount of unearned interest (money saved) when a loan scheduled to run for n payments is paid off k pay ...

An average middle-income family will spend $221,190to raise a child born in 2008 from birth through age 17. The graph shows the ...

SECTION 2.3 Applications of Linear Equations 67 Evaluate. See Section 1.2. 61.The product of and 5, divided by 1 less than 6 62. ...

OBJECTIVE 2 Write equations from given information. The symbol for equality, is often indicated by the word is. Translating Word ...

Combine like terms. Subtract 13. Divide by The solution set is. NOW TRY OBJECTIVE 4 Use the six steps in solving an applied prob ...

Step 5 State the answer.The width of the rectangle is 18 cm and the length is Step 6 Check.The length, 37 cm, is 1 cm more than ...

OBJECTIVE 5 Solve percent problems.Recall from Section 2.2that percent means “per one hundred,” so 5% means 0.05, 14% means 0.14 ...

Solving an Investment Problem Thomas Flanagan has $40,000 to invest. He will put part of the money in an account paying 4% inter ...

OBJECTIVE 7 Solve mixture problems. Solving a Mixture Problem A chemist must mix 8 L of a 40% acid solution with some 70% soluti ...

Solving a Mixture Problem When One Ingredient Is Pure The octane rating of gasoline is a measure of its antiknock qualities. For ...

SECTION 2.3 Applications of Linear Equations 75 11.The product of 8 and 16 less than a number 12.The product of 8 more than a nu ...

Solve each problem. See Examples 3 and 4. 29.The John Hancock Center in Chicago has a rectangular base. The length of the base m ...

37.Galileo Galilei conducted experiments involving Italy’s famous Leaning Tower of Pisa to investigate the relationship between ...

48.David Ruppel sold his house for $159,000. He got this amount knowing that he would have to pay a 6% commission to his agent. ...

61.Randall Albritton wants to mix 50 lb of nuts worth $2 per lb with some nuts worth $6 per lb to make a mixture worth $5 per lb ...

80 CHAPTER 2 Linear Equations, Inequalities, and Applications Solve each problem. See Section 2.2. 69.Use to find dif and 70.Use ...

Solving a Money Denomination Problem For a bill totaling $5.65, a cashier received 25 coins consisting of nickels and quar- ters ...