3 years ago

Students in a large district's two high schools are offered a "Second Breakfast' program after their first-period class.

Mathematics

1 answer:

murzikaleks [220]3 years ago

3 0

Answer:

Step-by-step explanation:

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X+2y=12 <br> 3x-10y = 0<br><br> y=?<br> x=?

sergeinik [125]

$~~x+2y=12 \\ ~~3x-10y=0 \\
~------ \\~ -3/x+2y=12 \\ ~~~~~~3x-10y=0 \\ ------- \\ -3x-6y=-36 \\ ~~~~3x-10y=0 \\ +------- \\ ~~~~-16y=-36 \\ \\ ~~~~y= \frac{36}{16}\rightarrow \boxed{\frac{9}{4}} \\ \\$
$x+2. \frac{9}{4} =12 \\ \\ x+ \frac{18}{4} =12 \\ \\ \frac{4x+18}{4} =12 \\ \\ 4x+18=48 \\ 4x=30 \\ \\ x=\boxed{\frac{15}{2}}$

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3 years ago

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If you answered 37 problems correctly on a 42 question test, what percent would you recieve

OleMash [197]

The fraction would be 37 out of 42. You basically divide the two and get something around 88%.

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3 years ago

What is the volume of a solid if the height is 4in and the base is 18 inches squared

zubka84 [21]

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