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lara31 [8.8K]
2 years ago
13

3(c-4)=4(c-6) i don't know how to solve it, either

Mathematics
2 answers:
STatiana [176]2 years ago
4 0

Answer:

c = 12

Step-by-step explanation:

3(c - 4) = 4(c - 6)

Use the distributive property on each side.

3c - 12 = 4c - 24

Now you need the terms with c on the left side and the numbers on the right side. Subtract 4c from both sides. Add 12 to both sides.

3c - 4c - 12 + 12 = 4c - 4c - 24 + 12

Combine like terms on each side.

-c = -12

Multiply both sides by -1.

c = 12

Kryger [21]2 years ago
3 0

Answer:

c=12

Step-by-step explanation:

First things first, lets distribute. On the left side, you multiply the c-4 by 3, which comes out to 3c-12. On the right side, multiply everything inside the parenthesis by 4, which makes it 4c-24. So now you have 3c-12=4c-24. Now to simplify. We always stare with the numbers farthest away from the exponent, which in this case is -12 and -24. When simplifying, we always want to make it a positive number if possible to keep it easy. now, we add 24 to both sides (to cancel out the -24) which gives us 3c+12=4c. After that, we subtract 3c to both sides, which gives us 12=c, or c=12. Hope that helps!

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According to the US Bureau of Labor Statistics publication News, self-employed persons with home-based businesses work a mean of
worty [1.4K]

Answer:

The answer is below

Step-by-step explanation:

Given that mean (μ) = 23 hours, standard deviation (σ) = 10 hours

a) The population is a group of self employed home based workers while the variable is the number of hours worked per week.

b) The mean of the distribution of sample means (also known as the Expected value of M) is equal to the population mean μ.

\mu_x=\mu=23\ hours

The standard deviation of the distribution of sample means is called the Standard Error of M, it is given by:

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{100} }=1

c) \mu_x=\mu=23\ hours

\sigma_x=\sigma/\sqrt{n} =\frac{10}{\sqrt{1000} }=0.32

d) The sample size has no effect on the mean, hence increasing the sample size does not change the mean.

The square root of sample size is inversely proportional to the standard deviation therefore increasing the sample size reduces the standard deviation.

5 0
3 years ago
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bixtya [17]
Answer
A)

Explanation


4 0
3 years ago
Read 2 more answers
2years as a percent of 18 months
marishachu [46]

Answer:

133.3%

Step-by-step explanation:

2 years= 24 months

24/18=133.3%,

Hope I helped

7 0
3 years ago
Read 2 more answers
A metal strip is being installed around a workbench that is 6 feet long and 4 feet wide. If stripping cost 3 per foot find total
puteri [66]

Answer:

Your answer would be...

30 ft

Hope this helps. Sry if im wrong.

Step-by-step explanation:

3 x 10 = 30 feet

5 0
2 years ago
How many solutions does the equation have? a+5=1/5(5a+25)
Iteru [2.4K]
A + 5 = \frac{1}{5} (5a + 25)

First, simplify \frac{1}{5} (5a + 25) to \frac{5a+25}{5} / Your problem should look like: a + 5 =  \frac{5a+25}{5}
Second, multiply both sides by 5. / Your problem should look like: 5a + 25 = 5(a + 5)
Third, expand to get rid of parenthesis. / Your problem should look like: 5a + 25 = 5a + 25
Fourth, both sides are equal, resulting it having infinite solutions.

Answer: infinite solutions

6 0
3 years ago
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