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Leto [7]
3 years ago
5

What is the solution to the system of equations? 5x-3y=-9 2x-5y=4 (___,___)

Mathematics
1 answer:
djverab [1.8K]3 years ago
4 0
\left \{ {{5x-3y=-9\ \ | *(-2)} \atop {2x-5y=4\ \ | *5}} \right. \\\\ \left \{ {{-10x+6y=18} \atop {10x-25y=20}} \right. \\\\+---\\addition\ method\\\\
-19y=38\ \ \ | divide\ by\ -19\\
y=-2\\\\2x=4+5y\ \ \ | divide\ by\ 2\\\\
x=\frac{4+5y}{2}=\frac{4+5*(-2)}{2}=\frac{4-10}{2}=\frac{-6}{2}=-3\\\\Solution:\\ \left \{ {{y=-2} \atop {x=-3}} \right.
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We have the following information:

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total: 6 + 3 = 9

second urn: 3 green, 3 white and 3 red

total: 3 + 3 + 3 = 9

third urn: 6 green, 1 white and 2 red

total: 6 + 1 + 2 = 9

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red = 3/9 = 33.33%

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green = 3/9 = 33.33%

red = 3/9 = 33.33%

white = 3/9 = 33.33%

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red = 2/9 = 22.22%

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3 years ago
Function and Reasoning:
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So, we have:

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See attachment for the graph of the relationship between the number of calories and the number of ounces

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Read more about linear graphs at:

brainly.com/question/4025726

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