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8090 [49]
3 years ago
11

What is the value of x 2x+3y=45 x+y=10

Mathematics
1 answer:
Volgvan3 years ago
4 0
Assuming this is a system of equations, here is how to find x. 

2x + 3y = 45
x + y = 10 

Multiply x + y = 10 by 2 so you are able to use the elimination method.

2x + 3y = 45
2x + 2y = 20

Subtract.

y = 25

Now that we've found y, we can plug it in to find x. 

x + 25 = 10

Subtract 25 from both sides.

x = -15
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Step-by-step explanation:

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For the function

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The values of the coefficients for the function are the following: a = 1, b =7, c = -1

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(\frac{b}{2})^2=(\frac{7}{2})^2=\frac{49}{4}

Add and subtract \frac{49}{4}

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Write the expression of the form

f(x) = (x+\frac{b}{2})^2 +k

f(x) =(x +\frac{7}{2})^2 -\frac{53}{4}

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Step-by-step explanation:

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