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skelet666 [1.2K]
3 years ago
13

50 POINTS! I MARK BRAINLEST AND SAY THANKS!

Mathematics
2 answers:
STALIN [3.7K]3 years ago
7 0

Hey there!


You said,

What number does y equal?

Y equals 4,5

What number does x equal?

X equals 5,4


They both have variables on  same side, so you can rearrange the equation, or solving for either x or y, and start substituting. Thats how i got the answers.



Hope this helped you. :D

Phantasy [73]3 years ago
5 0
Y *x =20

y +x =9

rewrite 1st eq. as y = 20/x

subsituute that into 2nd eq.

20/x +x =9

multiply each term by X

20 +x^2 = 9x
 subtract 9x from each side:

x^2 - 9x +20 = 0

now factor:

(x-5) (x-4) = 0

solve for x
5-5 = 0
 4-4 = 0

so X can be 4 or 5

replace x into equations and solve for Y

 so when X = 4, Y = 5
 When X = 5, Y = 4

x= 5,4
y = 4,5



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PLEASE ANSWER THIS ASAP !!!
Inga [223]

Answer:

Step-by-step explanation:

Finding the answer to the second box is easy. Just look at where the line hits the y axis. That point is (0,5). Put a 5 in the second box.

-2

Now pick two points How about (0,5) and (2,1)

Givens

y2 = 5

y1 = 1

x2 = 0

x1 = 2

Formula

m = (y2 - y1) / (x2 - x1)

m = (5 - 1)/(0 - 2)

m = 4 / - 2

m = - 2

Answer

So the first box contains - 2

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2 years ago
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sukhopar [10]

Answer:

(x, y) = (-3, -6)

Step-by-step explanation:

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This expression can be substituted for y in the first equation:

... 6 = -4x +(-5x -21)

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Using this value of x in the expression for y, we find ...

... -5(-3) -21 = y = -6

The solution is x = -3, y = -6.

8 0
3 years ago
What is the measurement of N?<br> A) 45° <br> B) 90° <br> C) 100° <br> D) 180°
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5 0
3 years ago
Read 2 more answers
Solve the area formula for a trianglt, A = 1/2bh for h
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1/2 bh=A
h=2A/b

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9514 1404 393

Answer:

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Step-by-step explanation:

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where principal P earns interest at annual rate r compounded monthly for n months. In this case, the balance would be ...

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  interest = $45,308.92 -35,000 = $10,308.92

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