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3 years ago

Plz help me I got broken up with yesterday I will give brainlyest I'm going thru a lot

Mathematics

2 answers:

butalik [34]3 years ago

5 0

Answer:

y = -2/5x + 3

Step-by-step explanation:

2x + 5y = 15

Isolate the y

5y = -2x + 15

Divide the 5 from the y

y= -2/5x + 3

Hope this helped

and sry abt what happened to u

victus00 [196]3 years ago

3 0

Answer:

y = -2/5x + 3

Step-by-step explanation:

Start with your given:

2x + 5y = 15

Isolate y:

5y = -2x + 15

Divide 5 on both sides:

y = -2/5x + 3

Hope that helped. Hang in there! :)

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3 years ago

Given the trinomial, what is the value of the coefficient B in the factored form? 2x2 + 4xy − 48y2 = 2(x + By)(x − 4y) −12 12 −6

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Answer:

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Step-by-step explanation:

We are trying to find a value for $B$ such that:

$2x^2+4xy-48y^2=2(x+By)(x-4y)$ is true for every $x,y$ .

So let's choose $x=0,y=1$ :

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Note: I didn't want to choose y to be 0 because the value of B would disappear from the equation. So you should be able to have chosen any x and y except for y=0 to solve the equation for B.

Check:

So let's check and use foil to multiply out the right hand side.

$(x+6y)(x-4y)$

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There was a 2 in front of that multplicapltiation:

$2(x+6y)(x-4y)$

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$2x^2+4xy-48y^2$

This is exactly what we have on the left hand side of your given equation.

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