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never [62]
3 years ago
5

2x+2y= 24 x=3y What is the value of x+y?

Mathematics
1 answer:
natita [175]3 years ago
5 0

Answer:

x = 9

y = 3

Step-by-step explanation:

2x + 2y = 24 is the same as x + y = 12

using substitution, x = 12-y

12 - y = 3y

12 = 4y

y = 3

x = 3(3)

x = 9

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I hope this helps you



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I WILL MARK YOU BRAINLYEST if you answer all of my problems !!!!!!!!!!!
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First, let's convert each line to slope-intercept form to better see the slopes.

Isolate the y variable for each equation.

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Subtract 2x from both sides.

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Rearrange.

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Divide both sides by 2.

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Line c:

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Add 2y to both sides.

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Divide both sides by 2.

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Now, let's compare our new equations:

Line a: y = -1/3x - 2

Line b: y = 1.5x - 5

Line c: y = 1.5x + 2

Now, the rule for parallel and perpendicular lines is as follows:

For two lines to be parallel, they must have equal slopes.

For two lines to be perpendicular, one must have the negative reciprocal of the other.

In this case, line b and c are parallel, and they have the same slope, but different y-intercepts.

However, none of the lines are perpendicular, as -1/3x is not the negative reciprocal of 1.5x, or 3/2x.

<h3><u>B and C are parallel, no perpendicular lines.</u></h3>
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Answer:

Please give me the rest of the question

Step-by-step explanation:

I will answer you in the comments.

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