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Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447

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Chapter
Section
BuyFindarrow_forward

Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447
Textbook Problem

Multiply the following numbers and verify your answers.

8 , 203 × 508 _

b. 5 , 400 × 250 _

c. 3 , 370 × 4 , 002 _

d. 189 × 169

e. Howard Martin, a plasterer, can finish 150 square feet of interior wall per hour. If he works 6 hours per day

How many square feet can he finish per day?

If a contractor hires four plasterers, how many feet can they finish in a 5-day week?

(a)

To determine

To calculate: The value of the multiplication of      8203×     508             ¯ also verify the answer.

Explanation

Given Information:

The provided expression is:

     8203×     508             ¯

Formula used:

Steps for multiplying whole numbers:

Step 1: Write down the factors such that the place values line up in columns.

Step 2: Multiply every digit of the multiplier with the multiplicand, starting with the units. Each multiplication gives a partial product whose unit digit appears under the same column that is the corresponding digit of the multiplier.

Step 3: Now in each column, add the digits of the partial products, starting with the unit’s column on the right

Calculation:

Consider the provided expression,

     8203×     508             ¯

Multiply the multiplier ‘8’ with the multiplicand:

     8203×     508   65624 ¯

Multiply the multiplier ‘0’ with the multiplicand, and write the partial product under the corresponding column:

     8203×     508   65624   0000 ¯

Multiply the multiplier ‘5’ with the multiplicand, and write the partial product under the corresponding column:

      8203×

(b)

To determine

To Calculate: The value of the multiplication of      5400×     250             ¯, also verify the answer.

(c)

To determine

To calculate: The value of the multiplication of             3370×          4002                    ¯, also verify the answer.

(d)

To determine

To calculate: The value of the multiplication of 189×169 also verify the answer.

(e)

To determine

To Calculate: How many feet can plasterer Howard Martin finish in one day, if he works for 6 hours a day and finish 150 square feet per hour, also calculate how many feet 4 such plasterers can finish in a 5-day week.

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