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viktelen [127]
3 years ago
13

Solve, using the substitution method.

Mathematics
1 answer:
inna [77]3 years ago
8 0
Y - 2x = 8 . . . . (1)
16 + 4x = 2y . . (2)

From (1), y = 2x + 8 . . . (3)

Putting (3) into (2) gives
16 + 4x = 2(2x + 8) = 4x + 16
0 = 0

Therefore, there are infinite number of solutions.
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<span>We need to calculate noon sun angle. Noon sun angle is an angle at which sun-rays fall at noon on a given date.
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4 0
3 years ago
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mihalych1998 [28]

Answer:

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7 0
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Answer:6

Step-by-step explanation:

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Remember you can do anything to an equation as long as you do it to both sides
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