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PolarNik [594]
3 years ago
8

Help me answer this q1

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer: B is the answer yup B

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Solve the system of equations -5x – 2y = 13 and 3x-y = 12 by combining the equations
Ne4ueva [31]

Answer:

x=1 y =15

Step-by-step explanation:

hopefully correct

-5x-2y=13 (i)

3x-y=12

-y=12-3x

y=-12+3x (ii)

substitute ii into i

-5x-2(-12+3x)=13

-5x +24-6x=13

-11x=-11

x=1

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2 years ago
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Hoochie [10]
They ate 1/3 of the cake
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3 years ago
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sladkih [1.3K]
Put -4 in place of x
-4 to the second power is 16 so it would be 16-(-12)= 28
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A hospital needs to dilute a 50% boric acid solution to make it a 10% boric acid solution. If it needs 25 liters of the 10% solu
saul85 [17]
I'm pretty sure the answer is 5 because I did 50% of 50 which is 5
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3 years ago
What is the value of x in the equation 3<br> 3x+9 - ģx-37<br> ?
Rom4ik [11]

Answer:

x = 6

Step-by-step explanation:

we can multiply the entire equation by 3 to simplify the numbers

-2x + 27 = 4x - 9

27 = 6x - 9

36 = 6x

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2 years ago
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