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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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2 years ago
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Firefly211 what is the length to memphis to Alaska
Natalija [7]
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3 years ago
Kevin hiked up lambs Canyon and two hours and then ran back down in one hour has been running downhill was 2.8 mph greater than
coldgirl [10]

Answer: he hiked 5.6 miles up the canyon.

Step-by-step explanation:

Let x represent his speed hiking uphill.

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Distance = speed × time

Kevin hiked up Lamb’s Canyon in 2 hours. This means that the distance covered by hiking uphill is 2 × x = 2x

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3 years ago
I need help extra points and work brainlyisr
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Answer:

106.25

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