Beginning Algebra, 11th Edition

OBJECTIVES Formulas and Additional Applications from Geometry 2.5 1 Solve a formula for one variable, given values of the other ...

SECTION 2.5 Formulas and Additional Applications from Geometry^121 OBJECTIVE 2 Use a formula to solve an applied problem. When s ...

Step 3 Write an equation.Use the formula for the perimeter of a triangle. Perimeter of a triangle Substitute. Step 4 Solve. Comb ...

SECTION 2.5 Formulas and Additional Applications from Geometry^123 Finding Angle Measures Refer to the appropriate figure in eac ...

To solve a formula for a specified variable, we use the samesteps that we used to solve an equation with just one variable. For ...

SECTION 2.5 Formulas and Additional Applications from Geometry^125 Solving for a Specified Variable Solve for B. Multiply by 2 t ...

( perimeter of a rectangle); , 14. ;, 15. ;, 16. ;, ( perimeter of a triangle); , , ;, , (distance formula); , ;, (simple int ...

SECTION 2.5 Formulas and Additional Applications from Geometry^127 (volume of a pyramid); , 36. ;, (volume of a sphere); 38. ...

48.The Rogers Centre in Toronto, Canada, is the first stadium with a hard-shell, retractable roof. The steel dome is 630 ft in d ...

SECTION 2.5 Formulas and Additional Applications from Geometry^129 Solve each formula for the specified variable. See Examples 6 ...

130 CHAPTER 2 Linear Equations and Inequalities in One Variable OBJECTIVES Ratio, Proportion, and Percent 2.6 1 Write ratios. 2 ...

SECTION 2.6 Ratio, Proportion, and Percent^131 To find the best buy, write ratios comparing the price for each size of jar to th ...

132 CHAPTER 2 Linear Equations and Inequalities in One Variable NOTE If then or This means that the two proportions are equivale ...

SECTION 2.6 Ratio, Proportion, and Percent^133 Solving an Equation by Using Cross Products Solve the equation Cross products Dis ...

134 CHAPTER 2 Linear Equations and Inequalities in One Variable Basic percent equation Converting Between Decimals and Percents ...

SECTION 2.6 Ratio, Proportion, and Percent^135 NOW TRY EXERCISE 8 Solve each problem. (a)What is 20% of 70? (b)40% of what numbe ...

Write a ratio for each word phrase. Write fractions in lowest terms. See Example 1. 3.40 mi to 30 mi 4.60 ft to 70 ft 5.120 peop ...

SECTION 2.6 Ratio, Proportion, and Percent^137 45.Eight quarts of oil cost $14.00. How much do 5 qt of oil cost? 46.Four tires c ...

Two triangles are similarif they have the same shape (but not necessarily the same size). Similar triangles have sides that are ...

SECTION 2.7 Further Applications of Linear Equations^139 Convert each decimal to a percent. See Examples 7(c) and 7(d). 83.0.80 ...