Write a system of equations and use the inverse of the coefficient matrix to solve the system.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. Cable B requires 1 black, 2 white, and 1 red wires. Cable C requires 2 black, 1 white, and 2 red wires. They used 135 black, 70 white and 80 red wires. How many of each cable were made?
A. 15 cable A
16 cable B
15 cable C
B. 15 cable A
20 cable B
15 cable C
C. 48 cable A
20 cable B
12 cable C
D. 20 cable A
15 cable B
15 cable C
Answer: B
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A. 
10ln 5t
B. 10ln 5t
C. 
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D. 
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? seconds; f = 
oscillations/second
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seconds; f = 
oscillations/second
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seconds; f = 
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