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3 years ago

Brainliest to whoever can answer this question the best + 50 pts.

Mathematics

2 answers:

kobusy [5.1K]3 years ago

6 0

Answer:

x = -2 and y = -2

Explanation:

Given equations:

3x - 2y = -2

5x - 3y = -4

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

Make the value before y equal:

( 3x - 2y = -2 ) * 3

9x - 6y = -6 .........equation 1

( 5x - 3y = -4 ) * 2

10x - 6y = -8 ...........equation 2

solve them by elimination:

10x - 6y = -8

-9x + 6y = +6

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

x = -2

If x is -2

Then y:

10x - 6y = -8 .................from equation 2

-6y = -8-10x

y = [-8 - 10(-2)]/-6

y = -2

Gnoma [55]3 years ago

5 0

3x-2y=-2--(1)
5x-3y=-4--(2)

(1)×5 and (2)×3

$\\ \tt\hookrightarrow 15x-10y=-10--(3)$

$\\ \tt\hookrightarrow 15x-9y=-12--(4)$

Subtracting

$\\ \tt\hookrightarrow -y=+2$

$\\ \tt\hookrightarrow y=-2$

Put in eq(1)

$\\ \tt\hookrightarrow 3x+4=-2$

$\\ \tt\hookrightarrow x=-2$

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4 years ago

What is the first step to solve number one??

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3 years ago

Read 2 more answers

Suppose that the probability that any particle emitted by a radioactive material will penetrate a certain shield is 0.01. If 10

AnnyKZ [126]

Answer:

a)P=0.42

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$P=\frac{10!}{2!(10!-2!)}0.01^2(1-0.01)^{10-2}\\P=\frac{10!}{2!*8!}0.01^2(0.99)^{8}\\P=45*0.01^2(0.99)^8=0.42$

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3 years ago

What is the value of y in the equation 5x + 2y = 20, when x = 0.3?

velikii [3]

Answer:

y=9.25

Step-by-step explanation:

1. Plug in x=0.3 into the equation.

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3 years ago

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Answer:

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