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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
Which expression is equivalent to 4 square root 6 divided by 3 root 2?
saw5 [17]

Answer:

\sqrt[12]{55296}/2

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\sqrt[4]{6}/\sqrt[3]{2}=1.2422

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5 0
3 years ago
10 / 5 + 10 - 9 x 11<br>​
Ugo [173]

Order of Operations:

1. Parentheses

2. Exponents

3. Multiplication

4. Division

5. Addition

6. Subtraction

Step-By-Step Explanation:

1. Take 9 • 11 = 99

2. Take 10 / 2 = 5

3. Take 2 + 10 - 99 = -87

So -87 would be your final answer. Hope that helped!

7 0
3 years ago
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