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4 years ago

So there Is the Question Answer This One And the Other is for the other person

Mathematics

1 answer:

ASHA 777 [7]4 years ago

5 0

Answer:

y = 1/3x +5/3

The third one : )

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a student bought a juice pouch for $2.50 and 3 bags of chips. the total cost was $5.05 write and solve an equation to determine

Wittaler [7]

First, write it as an equation

2.50+3x=5.05

Next, subtract 2.50 from both sides

2.50-2.50+3x=5.05-2.50

3x=2.55

Divide 3 on both sides

3x/3=2.55/3

x=0.85

The cost of a bag of chips is 0.85

hope i helped :D

5 0

3 years ago

Read 2 more answers

Francisco lives in a state that charges an auto registration fee of $59.50 for the first 1,000 lbs. and $0.75 for every 100 lbs.

jenyasd209 [6]

Answer:

$79 is the answer.

The answer is hard to explain, but I asked someone if it was right, and it is.

Hope this helps, - Good Luck!

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4 years ago

How many groups of 1/4 are in 3?”

irinina [24]

Answer: 12

Step-by-step explanation:

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3 years ago

Read 2 more answers

What are different ways to add two rational numbers and get a negative

makkiz [27]

If the sum is negative or if the signs are different and the negative has a biger absoulute value.

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4 years ago

You intend to estimate a population proportion with a confidence interval. The data suggests that the normal distribution is a r

SIZIF [17.4K]

Answer:

The critical value that corresponds to a confidence level of 99% is, 2.58.

Step-by-step explanation:

Consider a random variable X that follows a Binomial distribution with parameters, sample size n and probability of success p.

It is provided that the distribution of proportion of random variable X, $\hat p$ , can be approximated by the Normal distribution.

The mean of the distribution of proportion is, $\mu_{\hat p}=\hat p$

The standard deviation of the distribution of proportion is, $\sigma_{\hat p}=\sqrt{\frac{\hat p(1-\hat p)}{n}}$ .

Then the confidence interval for the population proportion p is:

$CI=\hat p\pm z_{\alpha /2}\sqrt{\frac{\hat p(1-\hat p)}{n} }$

The confidence level is 99%.

The significance level is:

$\alpha =1-\frac{Confidence\ level}{100}=1-\frac{99}{100}=1-0.99=0.01$

Compute the critical value as follows:

$z_{\alpha /2}=z_{0.01/2}=z_{0.005}$

That is:

$P(Z>z)=0.005\\P(Z$

Use the z-table for the z-value.

For z = 2.58 the P (Z < z) = 0.995.

And for z = -2.58 the P (Z > z) = 0.005.

Thus, the critical value is, 2.58.

7 0

4 years ago