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ehidna [41]
3 years ago
12

What is the answer to 3x+8y+13x

Mathematics
2 answers:
vovikov84 [41]3 years ago
4 0
Collect the like terms
3x+13x=16x
16x+8y
amm18123 years ago
3 0
Simplifying
3x + 8y + 13x = 0

Reorder the terms:
3x + 13x + 8y = 0

Combine like terms: 3x + 13x = 16x
16x + 8y = 0

Solving
16x + 8y = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8y' to each side of the equation.
16x + 8y + -8y = 0 + -8y

Combine like terms: 8y + -8y = 0
16x + 0 = 0 + -8y
16x = 0 + -8y
Remove the zero:
16x = -8y

Divide each side by '16'.
x = -0.5y

Simplifying
x = -0.5y
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Step-by-step explanation:

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Some questions have the form y = kx, where k is a number. Drag each question to the correct category below. ( X = y/2 ),( y = .1
fomenos

Answer:

<u>Has the form y = kx</u>

( y = 0.11x)

(y = 0.04x)

<u>Can be put into form y = kx</u>

(z/x = 9)

<u>Other</u>

(5 = xy)

( x = y/2)

Step-by-step explanation:

<u>y = kx</u>

( y = 0.11x)

(y = 0.04x)

<u>kx = y</u>

(z/x = 9)

-----------

( x = y/2 )

( x - 5 = y)

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A fair tossed 10 times . Find the probability of obtaining (i) exactly four heads (ii) 3 heads and 7 tails (iii) at least one he
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Answer:

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Step-by-step explanation:

Using binomial probability distribution :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

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P(X = 7) = 120 * 0.0009765625

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P(atleast one head)

P(x greater than equal to 1) = p(x =1) +... P(x = 10)

Using a binomial probability calculator :

P(x greater than equal to 1) = 0.999

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