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spin [16.1K]
4 years ago
15

Solving With Substitution (For 10 Points!!): x + 2y = 6 3x- 4y = 28

Mathematics
2 answers:
Tanya [424]4 years ago
8 0
Your answer will be approximately 8 for the first one and -1 for the second
ozzi4 years ago
7 0

Answer:

x  + 2y = 6 \\ 3x - 4y = 28 \\ \\  x = 6 - 2y \\ \\  3(6 - 2y) - 4y = 28 \\ 18 - 6y - 4y = 28 \\  - 10y = 10 \\ y =  - 1 \\  \\ x = 6 - 2( - 1) \\ x = 8

Answer:(8; -1)

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The conversion factor from days to seconds is 86400, which means that 1 day is equal to 86400 seconds:

1 d = 86400 s

To convert 3 days into seconds we have to multiply 3 by the conversion factor in order to get the time amount from days to seconds. We can also form a simple proportion to calculate the result:

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Solve the above proportion to obtain the time T in seconds:

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3 days = 259200 seconds

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