!!!!!!NEED URGENT HELP!!!!! Solve the following equation for x: 2x - 3y = 6.

Mathematics

2 answers:

Blababa [14]3 years ago

7 0

Answer:

2x - 3y = 6.

2x = 6 +3y

2x = 3 (2+y)

x =( 3 (2+y))/2 or (6 +3y)/2

so divide (6 +3y)/2 seperately

6/2 + 3y/2 = x

3 + 3y/2 = x

x = 3y/2 +3

x = 3/2y + 3

so the answer is A

pashok25 [27]3 years ago

5 0

Let's answer for x.

2x−3y=6

Step 1: Add 3y to both sides.

2x−3y+3y=6+3y

2x=3y+6

Step 2: Divide both sides by 2.

x=3/2y+3.

So, A: x=3/2y+3 is correct. Now this is a graphing problem. Make sure to graph it correct.

You might be interested in

Suppose the life of a particular brand of calculator battery is approximately normally distributed with a mean of 75 hours and a

shepuryov [24]

Answer:

a) $P(X$

And we can find this probability using the normal standard table or excel:

$P(z$

b) $P(X>77)=P(\frac{X-\mu}{\sigma}>\frac{77-\mu}{\sigma})=P(Z>\frac{77-75}{10})=P(z>0.2)$

And we can find this probability using the complement rule and the normal standard table or excel:

$P(z>0.2)=1-P(Z$

c) $z = \frac{70-75}{\frac{10}{\sqrt{16}}}= -2$

$z = \frac{80-75}{\frac{10}{\sqrt{16}}}= 2$

And we can find this probability with this difference:

$P(-2$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the life of a particular brand of a population, and for this case we know the distribution for X is given by:

$X \sim N(75,10)$