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2 years ago

How do you solve word problems with fractions?

2 answers:

8 0

You have to do what it says if you have to divide you divide if you have to multiply you multiply if you have to add you add and that is the same for subtraction as well.

I hope this helps you out.

Step-by-step explanation:

bulgar [2K]2 years ago

6 0

Answer:

Step-by-step explanation:

Read through the problem and set up a word equation — that is, an equation that contains words as well as numbers.

Plug in numbers in place of words wherever possible to set up a regular math equation.

Use math to solve the equation.

Answer the question the problem asks.

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85,109,178 in world form

igor_vitrenko [27]

Eighty five million, one hundred nine thousand, one hundred seventy-eight.

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3 years ago

If using the method of completing the square to solve the quadratic equation x2 −4x+13=0, which number would have to be added to

stiv31 [10]

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2 years ago

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Nadusha1986 [10]

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3 years ago

Chelsea deposits $600.00 into a bank account and is earning 8.5%simple interest. She decides to keep the account for 4 years. a)

snow_lady [41]

Answer:

$204 in interest

Step-by-step explanation:

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3 0

3 years ago

5. A study found that the average time it took a person to find their dream home was 5.9 months. If a sample of

solong [7]

Answer:

The 95% confidence interval of the mean time it took a person to find their dream home is between 5.64 months and 6.16 months.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.95}{2} = 0.025$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.025 = 0.975$ , so $z = 1.96$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.96\frac{0.8}{\sqrt{36}} = 0.26$

The lower end of the interval is the sample mean subtracted by M. So it is 5.9 - 0.26 = 5.64 months

The upper end of the interval is the sample mean added to M. So it is 5.9 + 0.26 = 6.16 months.

The 95% confidence interval of the mean time it took a person to find their dream home is between 5.64 months and 6.16 months.

4 0

3 years ago