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kiruha [24]
3 years ago
14

3x + ky = 8

Mathematics
1 answer:
djyliett [7]3 years ago
3 0

Answer:

a) 3x + ky = 8

ky = 8 - 3x

x – 2ky = 5

x - 2(8 - 3x) = 5

x - 16 + 6x = 5

7x = 21

x = 3 (shown)

b) x-2ky = 5

sub x = 3, y = 1/2

3-2k(1/2) = 5

-2k = 2

k = -1

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<u>Step-by-step explanation:</u>

Given,

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On the first day,

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⇒ 5x + 6y = 58  ----------(1)

On the second day,

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⇒ 8x + 11y = 97  ----------(2)

<u>Solving the equations for x and y values :</u>

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