Write a system of equations, and use the inverse of the coefficientmatrix to solve each system of equations. (See Example 1.)15. E-Commerce For online store sales, the payment processingservice Square charges 2.9% of the total sales plus S.30 pertransaction. For your online business, the cost of using Squarelast month was $291. A competitor to Square charges 3% oftotal sales plus $.25 per transaction, and your bill for the samemonth with that company would have been $295. Find the totalsales amount and the number of transactions. (Data from: www.squareup.com.)

A system of m×n numbers arranged in the form of a rectangular array having m rows and n columns is…

Answered: 15. E-Commerce For online store sales,…

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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