3 years ago

Which of the following situations represents a proportional

Mathematics

1 answer:

Mamont248 [21]3 years ago

4 0

The answer is that be C.

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3x - 3y = 9 and x + 3y = 12 <br> Elimination

Firlakuza [10]

Answer:

$x=5.25,y=2.25$

Step-by-step explanation:

We can add the two equations to eliminate the variable $y$ and solve for $x$ :

$3x-3y+x+3y=9+12$

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Now, we can use substitution to solve for $y$ :

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$3y=12-5.25$

$=6.75$

$y=2.25$

Hope this helps :)

8 0

3 years ago

The product of a number and four, increased by 5.

german

I’m pretty sure the answer is 4x+5

3 0

1 year ago

Read 2 more answers