Chapter 1, Problem 17AT

### Contemporary Mathematics for Busin...

8th Edition
Robert Brechner + 1 other
ISBN: 9781305585447

Chapter
Section

### Contemporary Mathematics for Busin...

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

# You are the bookkeeper for the Gourmet Diner in Exercise 16. If breakfasts average $6 each, lunches average$9 each, and dinners average $13 each, calculate the total dollar sales for last week. To determine To calculate: The total dollar sales in the last week, if the cost of the breakfast is average$6 each unit, lunch is average $9 each unit and dinner is average$13 each unit, table is shown below:

 Monday Tuesday Wednesday Thursday Friday Saturday Total units Breakfast 82 56 68 57 72 92 427 Lunch 29 69 61 58 82 75 374 Dinner 96 103 71 108 112 159 649 Daily Totals 207 228 200 223 226 326 Grand Total 1,450
Explanation

Given Information:

The provided data is,

Gourmet Diner

 Monday Tuesday Wednesday Thursday Friday Saturday Total units Breakfast 82 56 68 57 72 92 427 Lunch 29 69 61 58 82 75 374 Dinner 96 103 71 108 112 159 649 Daily Totals 207 228 200 223 226 326 Grand Total 1,450

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.

Step 1: Line up the place values by writing the whole numbers in column- units, tens, hundreds, thousands, and so on.

Step 2: Starting from the right with the units column, add the digits in each column.

Step 3: Write the units digit and carry the tens digit to the top of the next column to the left, when the total in column is greater than 9.

Calculation:

Consider the following data from exercise 16,

Gourmet Diner

 Monday Tuesday Wednesday Thursday Friday Saturday Total units Breakfast 82 56 68 57 72 92 427 Lunch 29 69 61 58 82 75 374 Dinner 96 103 71 108 112 159 649 Daily Totals 207 228 200 223 226 326 Grand Total 1,450

Total sales of the breakfast will be,

Total units of breakfast sold ×Average price each unit

So, the expression becomes,

427×      6           ¯

To solve the expression multiply the multiplier ‘6’ with the multiplicand.

427×      6  2562 ¯

Therefore, total sales of breakfast are $2,562. Now, Total sales of the lunch will be, Total units of lunch sold × Average price each unit So, the expression becomes, 347× 9 ¯ To solve the expression multiply the multiplier ‘9’ with the multiplicand. 347× 9 3123 ¯ Therefore, total sales of lunch are$3,123.

Now, Total sales of the dinner will be,

Total units of dinner sold × Average price each unit

So, the expression becomes,

649×    13           ¯

To solve the expression multiply the multiplier ‘9’ with the multiplicand

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