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Verdich [7]
3 years ago
10

HELP QUICK!! solve by substitution and show work please

Mathematics
2 answers:
Elanso [62]3 years ago
8 0

Answer:

(-1,-3)

Step-by-step explanation:

Substitute y=x-2 into y=4x+1

x-2=4x+1

substract -1 on both sides.

x-3=4x

subtract x on both sides

-3=3x

divide by 3 on both sides

x=-1

Substitute -1 into equation

y=x-2

y=(-1)-2

y=-3

So it would be (-1,-3)

Hoped it helped!

lakkis [162]3 years ago
5 0
4x-1=x-2
3x=-1
x=-1/3 is the answer
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Mashutka [201]

Answer:

the answer to the question is 8x⁴- 5x²y² - 6y⁴  

Step-by-step explanation:

the normal way of using BODMAS is apply to all polynomial equations.

subtracting  -6x⁴- 3x²y² + 5y⁴ from 2x⁴ - 8x²y² - y⁴.

polynomial of the same degree is very easy to calculate. this equation is having the same degree of polynomial all through, therefore:

  Applying Bracket to the equation

   2x⁴ - 8x²y² - y⁴- ( -6x⁴- 3x²y² + 5y⁴)

  Open the bracket

   2x⁴ - 8x²y² - y⁴ +6x⁴+3x²y² - 5y⁴

  collects the likes terms

   2x⁴ +6x⁴- 8x²y² +3x²y² - 5y⁴  - y⁴

  The final answer is =

   8x⁴- 5x²y² - 6y⁴  

6 0
4 years ago
15 crackers weigh 69 grams. how many kilograms is this?
Marrrta [24]

Answer:

0.069\ kg

Step-by-step explanation:

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1 kg=1,000 g

so

using proportion

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Let

x -----> the weight in kg

\frac{1}{1,000}\frac{kg}{g} =\frac{x}{69}\frac{kg}{g}\\\\x=\frac{69}{1,000}\\\\x=0.069\ kg

6 0
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Dimas [21]

Hello,

The correct answer is C) 9 hours and 5 minutes.

Hope this helps!!!! :)

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Step-by-step explanation:

7 0
2 years ago
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I’m confused can someone help me please
Andrej [43]
It’s 6 with a remainder of 4. So what we’re doing here is dividing 32 by 5. It’s pretty simple. Hope this helps!
6 0
3 years ago
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