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marusya05 [52]
3 years ago
9

Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12

Mathematics
2 answers:
timama [110]3 years ago
7 0
<span>2r + 3s= 9 <=> -6r -9s = -27;</span>
<span>3r + 2s= 12 <=> 6r + 4s = 24;
                    => 0*r -5*s = -3 => s = 3/5;

2*r + 3*(3/5) = 9<=> 10*r + 9 = 45 <=> 10*r = 36 => r = 18/5;
</span>
Rzqust [24]3 years ago
6 0

Answer:

(18/5,3/5)

Step-by-step explanation:

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The first four multiples of 7 are 7, 14 21, and 28. Use this example to help you as you answer the questions below.
Pachacha [2.7K]

Answer:

For A. it would be 9, 18, 27, 36, 45, 54

For B. it would be 12, 24, 36, 48, 60, 72

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For D. it would be 3

Step-by-step explanation:

Hope this helps

6 0
2 years ago
What percent of 4 is 1?
Flauer [41]
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Hope this helps
8 0
3 years ago
Write the equation in slope-intercept form of the line that contains the points (4, -7) and (0, 5).
LenaWriter [7]
The slope intercept form is y=mx+b
The slope formula is m=(y2-y1)/(x2-x1)
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5=(-3)(0)+b
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Y= -3x+5

Hope this helps :)

4 0
3 years ago
Read 2 more answers
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lys-0071 [83]

Answer

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Step-by-step explanation:

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