3 years ago

I need help with this question it’s due today please help.

Mathematics

1 answer:

11Alexandr11 [23.1K]3 years ago

6 0

Answer:

7 in

Step-by-step explanation:

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You would do 4-2= 2 then 8/2 =4 .. final answer being 4

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Rina8888 [55]

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Find the x and y intercept of each line y=7x + 5

Zina [86]

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3 years ago

Elimination method<br> 4x-2y=48<br> 2x+6y=-18

yulyashka [42]

$4x-2y=48\\ \\ 2x+6y=-18$

First we'll multiply the second equation by -2

$-2\cdot (2x+6y)=-2\cdot -18\\ \\ -4x-12y=36$

Now let's add the new equation and the first one.

$(4x-2y)+(-4x-12y)=48+36\\ \\ 4x-4x-2y-12y=48+36\\ \\ -14y=84\\ \\ y=\frac { 84 }{ -14 } \\ \\ y=-6$

We found y's value. We'll plug it in one of the equations to find x's value.

$y=-6\\ \\ 4x-2y=48\\ \\ 4x-2\cdot -6=48\\ \\ 4x+12=48\\ \\ 4x=48-12\\ \\ 4x=36\\ \\ x=\frac { 36 }{ 4 } \\ \\ x=9$

Solution ;

(9, -6)

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Korolek [52]

7. p=0.4
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3 years ago

￼I need help with this question it’s due today please help.

I need help with this question it’s due today please help.