Answers:
- Part A. x = 10
- Part B. x = 4
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Work Shown:
Part A.
5/x = 3/6
5*6 = x*3
30 = 3x
3x = 30
x = 30/3
x = 10
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Part B.
x/12 = (x+1)/15
15x = 12(x+1)
15x = 12x+12
15x-12x = 12
3x = 12
x = 12/3
x = 4
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Explanation:
For each figure shown, the parallel lines help set up proportional segment pieces. This in turn helps set up the equations mentioned. The next step afterward, I used the cross multiplication rule to go from the form P/Q = R/S to PS = QR.
