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3 years ago

3x+2y=4 and 2x-4y=8. need help with coodinates

Mathematics

1 answer:

Ksenya-84 [330]3 years ago

4 0

Answer:

The solution set would be (2, -1)

Step-by-step explanation:

To find the solution set, use the elimination method. You can do this my multiplying the whole first equation by 2 and then adding the two equations together.

6x + 4y = 8

2x - 4y = 8

----------------

8x = 16

x = 2

Now that we have the value of x, solve for y using either equation.

2x - 4y = 8

2(2) - 4y = 8

4 - 4y = 8

-4y = 4

y = -1

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Step-by-step explanation:

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3 years ago

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Answer:

Dr Notes Receivable $52,200

Cr Cash $52,200

Dec. 11

Dr Notes Receivable $1,800

Cr Cash $1,800

Dec. 16

Dr Notes Receivable $4,800

Cr Accounts Receivable $4,800

Dec. 31

Dr Interest Receivable $637

Cr Interest Revenue $637

Step-by-step explanation:

Preparation of the journal entries

Nov 1

Dr Notes Receivable $52,200

Cr Cash $52,200

Dec. 11

Dr Notes Receivable $1,800

Cr Cash $1,800

Dec. 16

Dr Notes Receivable $4,800

Cr Accounts Receivable $4,800

Dec. 31

Dr Interest Receivable $637

Cr Interest Revenue $637

($609+$8+$20)

Working:.

Interest Revenue

Note that 1 Nov to Dec 31st will give us 2 months

=$52,200 x 0.07 x 2/12 =$609

Note that Dec 11 to Dec 31st will give us 20 days

=$1,800 x 0.08 x 20/360 =$8

Note that Dec 16 to Dec 31st will give us 15 days

=$4,800 x 0.10 x 15/360=$20

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