Answer:12 Protein bar and 3 magazines
Step-by-step explanation:
Given
Tom purchases Protein bars 3 times as much as magazine
Each bar cost
Each magazine costs
Sales tax is 6.5 %
suppose Tom buy x magazines so
Price of magazine is
Price of bars is
Total Price
After sales tax
This must be less than
so
thus
so he but 4 magazines and 12 protein bars
The matrix that represents the matrix D is
Given the elements of the matrix C.
The matrix c is represented by its rows and columns element, and the arrangements are:
C11 = 3 C12 = 1 C13=-9 C14 = 8
C21 = 2 C22=2 C23 =0 C24 = 5
C31 = 16 C32 = 1 C33=-3 C34=11
Remove the matrix name and position
3 1 9 8
2 2 0 5
16 1 -3 11
Represent properly as a matrix:
Matrix C equals matrix D.
So, we have:
Hence, the matrix that represents matrix D is
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