3 years ago

Need Help Asap!! Will Give Brainliest!!

Mathematics

1 answer:

crimeas [40]3 years ago

8 0

Answer:

y=2x-1

Step-by-step explanation:

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1. 3x + 6y = 3 and 7x + 3y = 7<br>ons for bo

sweet-ann [11.9K]

Answer:

(1,0)

Step-by-step explanation:

3x + 6y = 3

7x + 3y = 7

Multiply the second equation by -2

-2( 7x + 3y = 7)

-14x -6y = -14

Add this to the first equation to eliminate y

3x + 6y = 3

-14x -6y = -14

--------------------

-11 x = -11

Divide by -11

x = 1

Now find y

3x + 6y = 3

3 +6y = 3

Subtract 3 from each side

6y = 0

y =0

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Solve -7x^2+x+9=-6x quadratic formula

myrzilka [38]

Answer:

$-7x^2+x+9=-6x$

$-7x^2+x+9+6x=-6x+6x$

$-7x^2+7x+9=0$

$quadratic\: formula$

$x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}$

$\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}$

$x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}$

$\frac{-7+\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7+\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7+\sqrt{301}}{-14}$

$\frac{-7-\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7-\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7-\sqrt{301}}{-14}$

$answer=\frac{7+\sqrt{301}}{14}$

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3 years ago

Y = 5x+p point (-2, 1) p=?

ivann1987 [24]

The value of p = 11

y = 5x + p
1 = 5(-2) + p
1 = -10 + p
11 = p

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3 years ago

Lulu has raised 3/4 of the money she needs for a field trip. 1/2 of that money came from candy sales. What fraction of the total

Papessa [141]

3/8 of the money came from the candy sale

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2 years ago

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