Question

Solve A and B step by step for 15A + 60B =1 24A + 48B = 1.
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Answer 1

Answer:

Answer: b= 0.01805,a=-0.00553. Step-by-step explanation: 15a+60b=1; x-24. -24a+ 48b=1 x15. -360a-1440b=-24. -(-360a+720b=15).

Answer 2

Answer:

a = 1/60 and b = 1/80

Step-by-step explanation:

15x + 60y = 1

24x + 48y = 1

$A = \left[\begin{array}{cc}15&60\\24&48\end{array}\right] =-720$

$A_{x} = \left[\begin{array}{cc}1&60\\1&48\end{array}\right] = - 12$

$A_{y} = \left[\begin{array}{cc}15&1\\24&1\end{array}\right] = - 9$

$x = \frac{A_{x}}{A} = \frac{-12}{-720} = \frac{1}{60}$

$y=\frac{A_{y}}{A} = \frac{-9}{-720} = \frac{1}{80}$

a = x = 1/60

b = y = 1/80