2 years ago

The ratio of boys to girls in Amy’s dance class is 1:3. If the

Mathematics

1 answer:

MrMuchimi2 years ago

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Answer:

Step-by-step explanation:

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Keywords

system; linear equations; graphing; solution

we have

$y=-\frac{5}{2}x-7$ -------> equation A

$x+2y=4$

$x=4-2y$ ----> equation B

The system of linear equations is composed of equation A and equation B

Substitute the equation B in equation A

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Using a graphing tool

see the attached figure

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