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Vitek1552 [10]
3 years ago
14

Solve for x in the equation 6x=42

Mathematics
2 answers:
never [62]3 years ago
8 0
To solve an equation for a variable, we simply need to isolate that variable, and simplify all other terms. We can do this by performing the opposite operations of the terms.

6x=42
/6   /6
x=7

Using the math above, we can see that x=7.
mr_godi [17]3 years ago
5 0

Answer: x = 7

Step-by-step explanation: To solve for <em>x</em> in this equation, we need to get <em>x</em> by itself on the left sides of the equation. Since <em>x</em> is being multiplied by 6, to get <em>x</em> by itself, we need to divide by 6 on the left side of the equation.

If we divide by 6 on the left side,

we must also divide by 6 on the right side.

On the left side, the 6's cancel and we have <em>x</em>.

On the right, 42 divided by 6 is 7 so <em>x  = 7</em>.

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Just multiply each denominator and numerator straight across and convert to a mixed number, decimal, or whatever you want.

I am joyous to assist you anytime.

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3 years ago
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Answer:

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Usimov [2.4K]

Answer:

For this case we want to test if in a certain city in the U.S. are different from the proportion of the general population of young adults in the U.S 0.16 (alternative hypothesis) and the best system of hypothesis are:

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Alternative hypothesis:p \neq 0.16

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".  

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".  

Solution to the problem

For this case we want to test if in a certain city in the U.S. are different from the proportion of the general population of young adults in the U.S 0.16 (alternative hypothesis) and the best system of hypothesis are:

Null hypothesis: p=0.16

Alternative hypothesis:p \neq 0.16

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