3 years ago

Which of the following is equal to 250 milliliters?

Mathematics

1 answer:

Lostsunrise [7]3 years ago

4 0

I think the answer is a

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Write 2 other expressions equivalent to 4x + 4y <br> PLZ ANSWER FAST THANK YOU

hram777 [196]

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4 years ago

How I do this?<br> 3x+4y=11<br> X-2y=-3

Amanda [17]

Answer:

$\huge\boxed{x=1,\ y=2\to(1,\ 2)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}3x+4y=11\\x-2y=-3&\text{multiply both sides by (-3)}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}3x+4y=11\\-3x+6y=9\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\ \ \ \ 10y=20\qquad\text{divide both sides by 10}\\.\qquad\qquad\boxed{y=2}\\\\\text{subtitute it to the second equation:}\\x-2(2)=-3\\x-4=-3\qquad\text{add 4 to both sides}\\\boxed{x=1}$