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melomori [17]
3 years ago
13

What is the solution of the following system of equations ? y- 2x and= 6 , y - 4x =0

Mathematics
1 answer:
Sveta_85 [38]3 years ago
6 0

Answer:

x=3 and y=12

Step-by-step explanation:

y-2x=6     equation:1

y-4x=0     equation:2

Solving equation:1 for 'y' in terms of x

y=6+2x      equation:3

Putting 'y' in equation:2 which will make the equation of the single variable

y-4x=0

6+2x-4x=0\\-2x=-6\\x=3

Putting value of 'x' in equation:3 to find 'y'

y=6+2x

y=6+2(3)\\y=6+6\\y=12

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dalvyx [7]

Answer:

The answer would be: D. (1,2) and (2,-1)

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2 years ago
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3 years ago
What is the absolute value of –6?
Stolb23 [73]

Answer:

6

Step-by-step explanation:

|-6|

Apply rule |-a| = a

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3 years ago
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Write an exponential function to represent a person consuming a bag of candy in which the initial value in an is 175 pieces and
Alisiya [41]

We will see that the exponential decay function is:

f(x) = 175*(0.8)^x

<h3>How to find the exponential decay?</h3>

The general exponential decay is:

f(x) = A*(1- r)^x

Where:

  • A is the initial value.
  • r is the rate of decay in decimal form.
  • x is the variable, in this case is the time.

Here we know that the initial value is 175, and the rate of decay is 20%. To get this in decimal form, we just divide it by 100%.

20%/100%  = 0.2

Replacing that in the exponential function, we get:

f(x) = 175*(1 - 0.2)^x

f(x) = 175*(0.8)^x

If you want to learn more about exponential functions, you can read:

brainly.com/question/11464095

5 0
2 years ago
What is the volume of the cone to the nearest cubic meter with radius of 4m and height of 5m
adoni [48]

Answer :

B) 84 m³

Step by step :

\boxed{ \bold{volume =  \frac{1}{3}\pi  {r}^{2} h }}

volume =  \frac{1}{3}  \times 3.14 \times 4 \times 4 \times 5 \\ volume = \frac{1}{3}  \times  251.2 \\ volume = 83.73 \:  {m}^{3}  \\ volume = 84 \:  {m}^{3}

6 0
3 years ago
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