A bakery owner sold her last two cakes for $36 each. She made a profit of 24% on one cake, but had an 8% loss on the other. What
1 answer:
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Step-by-step explanation:
Let x = number of games that Alex played
The total money that he spent C is given by
If he spent $45, then we can write
Solving for x, we get
This means that Alex played 15 games.
Answer:
The answer is below
Step-by-step explanation:
The system of equations:
8x-9y+13z=11
-8x-5y+5z=15
3x+4y-8z=-10
The equations can be represented in matrix form as:
AX = B
X = A⁻¹B
Therefore: