Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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The following matrix gives the number of vehicles sold in
January at a car dealership. Use the matrix to complete
parts (a) through (c) below.
Cars Trucks
14 16
22 12
New
Used
(a) In February, the new car sales decreased by 4, but the
new truck sales increased by 25%. The used car sales
increased by 50% while the used truck sales increased by
7. Write the vehicle sales matrix for February.
(b) Write a matrix that represents the total vehicle sales
over the two month period.
(c) Write a matrix showing the change in sales from
January to February.
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Transcribed Image Text:The following matrix gives the number of vehicles sold in January at a car dealership. Use the matrix to complete parts (a) through (c) below. Cars Trucks 14 16 22 12 New Used (a) In February, the new car sales decreased by 4, but the new truck sales increased by 25%. The used car sales increased by 50% while the used truck sales increased by 7. Write the vehicle sales matrix for February. (b) Write a matrix that represents the total vehicle sales over the two month period. (c) Write a matrix showing the change in sales from January to February.
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