3 years ago

What is the intersection of x+2y=-4 and 4x=3x+12? And what do i do to find this out?

1 answer:

4 0

Clean up the equation with x first and x=12.
Substitute this value in to the other equation to solve for y.
You should get a solution of (12,-8)

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VMariaS [17]

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3 years ago

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irakobra [83]

Get the y by itself

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3 years ago

Read 2 more answers

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svp [43]

Answer:

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Step-by-step explanation:

-7/8 - (-5/6)

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3 years ago

The variable Z is directly proportional to X. when X is 15, Z has the value of 45. what is the value of Z when X=23

IrinaVladis [17]

$If\ Z\ is\ directly\ proportional\ to\ X\ then\ \frac{Z}{X}=const.\\------------------------\\X=15\ and\ Z=45\\\\X=23\ and\ Z=?\\\\\frac{Z}{23}=\frac{45}{15}\to\frac{Z}{23}=3\ \ \ \ |multiply\ both\ sides\ by\ 23\\\\\huge\boxed{Z=69}$

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3 years ago