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4 years ago

For every 3 tickets you sell, your friend sell 4. You sell a total of 12 tickets. How many does your friend sell.

Mathematics

1 answer:

Sholpan [36]4 years ago

8 0

3:4
12:x
12/3=4 so multiply 4 by 4 to get the answer:
4*4=16 so your friend sold 16 tickets.

Hope this helps :)

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C. 3x+6y=9 and-2x-4y=4

Step-by-step explanation:

Given

Steps:

Multiply equation 1 by 2

Multiply equation 2 by 3

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The attachment completes the question

(a): -2x+4y=4 and -3x+6y=6

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Multiply by 3: $-3x+6y=6 ===> -6x + 12y = 12$

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B. 3x+y=12 and -3x+6y=6

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Multiply by 3: $-2x-4y=4 ===> -6x - 12y = 12$

Add together:

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