Basic Mathematics for College Students

RECORD HOLDERS The late Florence Griffith- Joyner of the United States holds the women’s world record in the 100-meter sprint: ...

TELEVISION The following illustration shows the six most-watched television shows of all time (excluding Super Bowl games and t ...

344 Chapter 4 Decimals SECTION 4.3 Multiplying Decimals Since decimal numbers are base-tennumbers, multiplication of decimals is ...

4.3 Multiplying Decimals 345 WHYSince the factor 5.9 has 1 decimal place, and the factor 3.4 has 1 decimal place, the product sh ...

346 Chapter 4 Decimals SolutionWe write the multiplication in vertical form, with 5.1 under 234. Move 1 place from the right to ...

4.3 Multiplying Decimals 347 Multiplying a Decimal by 10, 100, 1,000, and So On To find the product of a decimal and 10, 100, 1, ...

When we inspect the answers, the decimal point in the first factor 5.19 appears to be moved to the left by the multiplication pr ...

4.3 Multiplying Decimals 349 b. Write 1 billion in standard form. Since 1,000,000,000 has ninezeros, move the decimal point in 1 ...

350 Chapter 4 Decimals Solution a. The base is 2.4 and the exponent is 2. Write the base as a factor 2 times. Multiply the decim ...

4.3 Multiplying Decimals 351 7 Estimate products of decimals. Estimation can be used to check the reasonableness of an answer to ...

Sometimes more than one operation is needed to solve a problem involving decimals. 352 Chapter 4 Decimals Form The height (in mi ...

4.3 Multiplying Decimals 353 SolveWe will use the rule for the order of operations to evaluate the expression: Do the multiplica ...

Write each number in standard notation. a. one million b. one billion c. one trillion GUIDED PRACTICE Multiply.See Example 1. ...

Complete each table. NEW HOMES Find the cost to build the home shown below if construction costs are $92.55 per square foot ...

CITY PLANNING The streets shown in blue on the city map below are 0.35 mile apart. Find the distance of each trip between the t ...

PLUMBING BILLS A corner of the invoice for plumbing work is torn. What is the labor charge for the 4 hours of work? What is the ...

358 Chapter 4 Decimals SECTION 4.4 Dividing Decimals In Chapter 1, we used a process called long division to divide whole number ...

4.4 Dividing Decimals 359 WHYTo divide a decimal by a whole number, we divide as if working with whole numbers. Solution Step 1 ...

360 Chapter 4 Decimals EXAMPLE (^3) Divide: Strategy We will write the problem in long division form, place a decimal point dire ...

This fraction represents the division problem. From this result, we have the following observations. The division problem is eq ...