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Brilliant_brown [7]
4 years ago
6

3x+3y= 368x-5y=31Help Plz

Mathematics
1 answer:
mr Goodwill [35]4 years ago
7 0

Answer:

{x = 7  ,y = 5

Step-by-step explanation:

Solve the following system:

{3 x + 3 y = 36 | (equation 1)

8 x - 5 y = 31 | (equation 2)

Swap equation 1 with equation 2:

{8 x - 5 y = 31 | (equation 1)

3 x + 3 y = 36 | (equation 2)

Subtract 3/8 × (equation 1) from equation 2:

{8 x - 5 y = 31 | (equation 1)

0 x+(39 y)/8 = 195/8 | (equation 2)

Multiply equation 2 by 8/39:

{8 x - 5 y = 31 | (equation 1)

0 x+y = 5 | (equation 2)

Add 5 × (equation 2) to equation 1:

{8 x+0 y = 56 | (equation 1)

0 x+y = 5 | (equation 2)

Divide equation 1 by 8:

{x+0 y = 7 | (equation 1)

0 x+y = 5 | (equation 2)

Collect results:

Answer: {x = 7  ,y = 5


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A building worth $829,000 is depreciated for tax purposes by its owner using the straight-line depreciation method.
Delvig [45]

The value of the building would be $699,400 in 4 years.

<h3>What will be the value of the building?</h3>

Depreciation is the when the value of an asset reduces as a result of wear and tear. Straight line depreciation is a method used in depreciating the value of an asset linearly with the passage of time.

The equation that can be used to determine the value of the building with a straight line depreciation is:

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The first step is to determine the number of months it would take for the building to have a value of $699,400.

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To learn more about depreciation, please check: brainly.com/question/11974283

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8 0
1 year ago
Mr. rina has 7 glass figures . He will use 1 box to mail each glass figure to a customer . How many boxers does mr. rina need
77julia77 [94]

Answer:

Mr. Rina will need 7 boxes.

Step-by-step explanation:

Important information:

He has 7 glass figures and he will use 1 box per glass figure.

So, you need to do 7 divided by 1 because he will ship each package with 1 glass figure. 7 glass figures divided by 1 box is 1 box per glass figure.

3 0
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Hope I helped!
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