Calculate how much money they spent: a) men, b) women and c) children.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
For each of the following problems, correctly apply the concepts of matrix algebra to solve each situation. Use the mathematical notation correctly and remember to justify each of the required mathematical processes. Express the solution in the context of the situation. In the case that the result is decimal, you will round it to two decimal places.
Drinks were sold to men, women, and children at a school basketball game in the quantities and prices indicated in Figures 1 and 2.
Figures 1
|
Quantity |
|||
|
Coffee |
Milk |
Cola |
|
|
Mens |
200 |
20 |
300 |
|
Womens |
300 |
15 |
300 |
|
Kids |
1 |
100 |
800 |
Figures 2
|
Price |
|
|
Coffee |
$0.25 |
|
Milk |
$0.75 |
|
Cola |
$1.00 |
Calculate how much money they spent:
a) men,
b) women and
c) children.
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