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3 years ago

6=4x+9y I need to solve for y Please help me! This is due very soon!

Mathematics

2 answers:

iris [78.8K]3 years ago

8 0

The answer for y is 2/3

Elodia [21]3 years ago

7 0

Answer: This is very simple. When you don't have the value for x, you make that 0.

Step-by-step explanation:

so, it would be

6=4x+9y

-9y=4x-6

-9y=4(0)-6

-9y=-6

y=-6/-9

y=2/3

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Algebra!!!<br> 3 Questions Only take if you know ALL Answers<br> PLZZZ QUICK

vitfil [10]

Answer:

1. -7.5

2. $1

3. 40

Step-by-step explanation:

For number 1, it can be solved by using the PEMDAS method, or see explanation below:

6x - 4x - 36 = 6 - 2x

2x - 36= -2x + 6

4x + 36 = 6

4x = -30

x = -15/2 or -7.5

For number 2, substitute 3 into both equations:

f(x) =1.50(3) + 2.00

and

f(x) = 2.00(3) + 1.50

This would get $6.50 and $7.50, which, if subtracted, gets $1.

For number 3, do something similar to the previous problem. Substitute 3 for x. It would be 5(2^3), or 40.

Hope this helps!

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2 years ago

A square picture on the front page of a newspaper occupies an area of 24 square inches. Find the length of each side of the squa

Hoochie [10]

Answer:

Well if you are trying to find the length of each side you Divide 24 by 4 so your answer would be 6

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall sem

wariber [46]

Answer:

In order to calculate the expected value we can use the following formula:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

$E(X)=(1060*0.5) +(1400*0.1) +(1620*0.4)=1318$

Step-by-step explanation:

Let X the random variable that represent the number of admisions at the universit, and we have this probability distribution given:

X 1060 1400 1620

P(X) 0.5 0.1 0.4

In statistics and probability analysis, the expected value "is calculated by multiplying each of the possible outcomes by the likelihood each outcome will occur and then summing all of those values".

The variance of a random variable Var(X) is the expected value of the squared deviation from the mean of X, E(X).

And the standard deviation of a random variable X is just the square root of the variance.

In order to calculate the expected value we can use the following formula:

$E(X)=\sum_{i=1}^n X_i P(X_i)$

And if we use the values obtained we got:

$E(X)=(1060*0.5) +(1400*0.1) +(1620*0.4)=1318$

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2 years ago

That propertand of an arraand is still in the equation k (A + B) = kA + kB

Anarel [89]

Answer:

that propertand of an arraand is in the equation

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c Transposition

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3 years ago

Lee's family had a garden in the shape of a right triangle. the total area of the garden is 16 square feet. if they expand the g

lana [24]

Area of right-angled triangle is given by;

Area, A = 1/2 *b*h, Where b=base, h=height

Therefore,

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Ratio of increase = A2/A1 = {2bh}/(1/2bh} = 4 (the area is increased 4 times)
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2 years ago