Basic Mathematics for College Students

HARDWARE Refer to the illustration below. How long should the threaded part of the bolt be? OCTUPLETS On January 26, 2009, at K ...

HOSE REPAIRS To repair a bad connector, a gardener removes feet from the end of a 50-foot hose. How long is the hose after the ...

284 Chapter 3 Fractions and Mixed Numbers We have seen that the order of operations rule is used to evaluate expressions that co ...

If an expression contains grouping symbols, we perform the operations within the grouping symbols first. 3.7 Order of Operations ...

Solve application problems by using the order of operations rule. Sometimes more than one operation is needed to solve a problem ...

Evaluate formulas. To evaluate a formula, we replace its letters, called variables, with specific numbers and evaluate the right ...

Simplify complex fractions. Fractions whose numerators and/or denominators contain fractions are called complex fractions.Here i ...

3.7 Order of Operations and Complex Fractions 289 Self Check 7 Simplify: Now TryProblem 35  5 8  1 3 3 4  1 3 Solution Write ...

4.61 in. 5. m^2 6. 7. 8. 34 15  7 10 4 9 95 5 6 2 11 24  1 9 31 32 ANSWERS TO SELF CHECKS 290 Chapter 3 Fractions an ...

and are examples of fractions. In the complex fraction , the is and the is What operations are involved in this expression? a ...

Evaluate each expression.See Example 2. 19. 20. 21. 22. Evaluate each expression.See Example 3. Add to the difference of and. A ...

58. , for and. , for and. Subtract from the sum of and. Subtract from the sum of and ...

POSTAGE RATES Can the advertising package shown below be mailed for the 1-ounce rate? PHYSICAL THERAPY After back surgery, a pa ...

SLEEP The graph below compares the amount of sleep a 1-month-old baby got to the -hour daily requirement recommended by Childre ...

296 Chapter 3 Summary and Review CHAPTER 3 SUMMARY AND REVIEW SECTION 3.1 An Introduction to Fractions A fractiondescribes the n ...

Chapter 3 Summary and Review 297 There are four special fraction forms that involve 0 and 1. Each of these fractions is a form o ...

298 Chapter 3 Summary and Review SECTION 3.2 Multiplying Fractions To multiply two fractions, multiply the numerators and multip ...

Chapter 3 Summary and Review 299 Multiplying signed fractions The product of two fractions with the same (like) signs is positiv ...

300 Chapter 3 Summary and Review Fill in the blanks: To multiply two fractions, multiply the and multiply the. Then , if possib ...

Chapter 3 Summary and Review 301 The sign rules for dividing fractionsare the same as those for multiplying fractions. Divide an ...