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ElenaW [278]
3 years ago
8

Solve the equation - 9x – 2y=-12 2x+5y=-11 X= Y=

Mathematics
1 answer:
inysia [295]3 years ago
3 0

Answer:x=2, y=3

Step-by-step explanation:

solving this equation simultaneously

-9x - 2y=-12.............(1)

2x + 5y=-11.. ...........(2)

Using elimination method

Multiply equation 2 by 2 and equation 1 by 5

-45x -10y= -60...........(3)

4x + 10y=-22...............(4)

Subtracting equation 2 from 1

-41x + 0=-82

41x=82

x=82/41

X=2

To find y put x in equation 1

-9x - 2y= -12

-9(2)-2y=-12

-18-2y=-12

-2y=-12+18

-2y=6

Y= 6/2

Y=3

X=2, Y=3

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Wilma can mow a lawn in 80 mintues.Melissa can mow the same lawn in 120 minutes. How long does it take for both Wilma and Meliss
Luba_88 [7]
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4 0
3 years ago
Which function has no horizontal asymptote?
xxMikexx [17]
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3 0
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Read 2 more answers
Combine like terms to create an equivalent expression 2s+ (-4s) pls help
pav-90 [236]

The equivalent expression to 2s + (-4s) is -2s.

Step-by-step explanation:

Step 1:

In sums like these, it is easier to take the common term out of the simplification.

In the expression 2s + (-4s), the common term between 2s and -4s is the term s. So we take the term s as the common factor.

So taking s out of 2s + (-4s) we get s (2+(-4)).

Step 2:

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