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3 years ago

X+ 4x + 6x what is the answer in struggling really bad#

Mathematics

2 answers:

lawyer [7]3 years ago

6 0

x is a letter which is called a variable in algebra.

It stands for a number. It can be any number, but it can be only one number at a time.

If you have just x, then it is the same as 1x.

You have 1x, meaning you have 1 time an unknown number.

Then you add to it 4x, or 4 times the same unknown number.

Then you add to it 6x, or 6 times the same unknown number.

1 + 4 + 6 = 11

That means you now have 11 times the unknown number x, or 11x

x + 4x + 6x = 11x

ziro4ka [17]3 years ago

5 0

x + 4x + 6x = 5x + 6x = 11x

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Answer correct for brainliest and also get a thanks ! :-) please help !!

GREYUIT [131]

Y =2x +14

-4x –y = 4 so y = -4x – 4

2x + 14 = -4x – 4

2x + 4x = -4 - 14

6x = -18

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x = -3

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y = 2(-3) +14

y= -6 +14

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answer:

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3 years ago

Find a quadratic equation with roots -1, 4i and -1 - 4i

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3 years ago

You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.

RUDIKE [14]

Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

$xy = 288 \\ \\ \\ \\ \Rightarrow y= \frac{288}{x}$

Substituting for y into the equation for the length of fencing needed, we have

$P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}$

For the amount of fencing to be minimum, then

$\frac{dP}{dx} =0 \\ \\ \Rightarrow1- \frac{576}{x^2} =0 \\ \\ \Rightarrow \frac{576}{x^2} =1 \\ \\ \Rightarrow x^2=576 \\ \\ \Rightarrow x=\sqrt{576}=24$

Now, recall that

$y= \frac{288}{x} = \frac{288}{24} =12$

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.

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3 years ago

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IgorLugansk [536]

Answer: 64 cups

Step-by-step explanation:

Each gallon has 16 cups so you multiply 16 by 4 because there are 4 gallons and you get 64. Hope that helped. :)

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3 years ago

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