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quester [9]
3 years ago
13

Solve by eliminationx+5y=-13 2x-5y=-20​

Mathematics
2 answers:
juin [17]3 years ago
5 0

Answer:

x+5y=-13 ......(1)

2x-5y=-20..........(2)

adding equation 1 and 2

x+5y+2x-5y=-13-20

3x=-33

x=-33/3=-11....answer

multiplying equation 1 by 2 and adding equation 1&2

2x+10y-2x-(-5y)=-26-(-20)

10y+5y=-26+20

15y=-6

y=-6/15=-2/5......answer

jekas [21]3 years ago
3 0

Answer: x+5y=-13= (x=−5y−13)

   2x-5y=-20​= <u>(x=5/2y-10)        </u>

Step-by-step explanation: The answers are labeled in parenthesis. According to my calculations, this is what I got. Sorry for any inconvenience.

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NemiM [27]

Answer:

\mathrm{Decimal:\quad }\:1.25219\\\frac{14\sqrt{5}}{25}

Step-by-step explanation:

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3 years ago
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Please help me with #1 and 2 need for right now thank you
Fiesta28 [93]
For #1 the perimeter if the rectangle would be like 4 vertical and 2 horizontal and the area is 4 x 2= 8

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3 0
3 years ago
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zhannawk [14.2K]

Answer:

im not sure what is supposed to go into the first two boxes, but the correct y intercept is 48

Step-by-step explanation:

first you subtract 288x on both sides, leaving the equation at -4y= -288x-192. then you want to get y by itself so you divide both sides by -4. -288/-4=72; -192/4=48. so the equation you are left with is y= 72x+48. since the equation is now in slope intercept form, you can now identify the y intercept as 48. hope this helps :)

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2 years ago
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Answer:

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Answer: 5 6/10

Step-by-step explanation:

3 0
3 years ago
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