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max2010maxim [7]

4 years ago

5

a farmer hires 110 workers to harvest apples from his trees .it's takes the 12 days to harvest the farmers entire crop .how long

will it take 440farmes to harvest the crop

1 answer:

denis23 [38]4 years ago

3 0

110 = 12

12 × 4 = 48 days

hope I'm right

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Draw a picture to help find the equivalent fractions. 4/8 = /2 ?

irakobra [83]

This is proportion so multiply 2 by 4 and then divide it by 8 to get 1. The answer is 1

3 0

3 years ago

The starting salaries of individuals with an MBA degree are normally distributed with a mean of $40,000 and a standard deviation

liraira [26]

Answer:

d. 76.98%

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 40000, \sigma = 5000$

What percentage of MBA's will have starting salaries of $34,000 to $46,000?

This is the pvalue of Z when X = 46000 subtracted by the pvalue of Z when X = 34000. So

X = 46000

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{46000 - 40000}{5000}$

$Z = 1.2$

$Z = 1.2$ has a pvalue of 0.8849

X = 34000

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{34000 - 40000}{5000}$

$Z = -1.2$

$Z = -1.2$ has a pvalue of 0.1151

0.8849 - 0.1151 = 0.7698

So the correct answer is:

d. 76.98%

7 0

3 years ago

A group of 50 people has a ratio of 2:3 boys to girls. How many girls are there?

iragen [17]

16.6 with a line on top of 6. When you divide 50 by 3 you get 16.6 a repeating decimal.you would round and get 17. I think it's correct!!

4 0

4 years ago

Complete the table below for the function y = -3x+7

KiRa [710]

Answer:

(x,y)--> (2,1), (4, -5), (7, -14), (9, -20), (11, -26)

Step-by-step explanation:

y = -3x + 7

substituting x-values in y= -3x + 7

x = 2

y= -3 × 2 + 7

= -6 + 7

= 1

x=4

y= -3 × 4 + 7

= -12 + 7

= -5

x=7

y= -3 × 7 + 7

= -21 + 7

= -14

x=9

y= -3 × 9 + 7

= -27 + 7

= -20

x=11

y= -3 × 11 + 7

= -33 + 7

= -26

6 0

3 years ago

What is the probability of getting zero heads in six tosses? What is the probability of getting exactly two heads in six tosses?

alexira [117]

Answer:

The probability of getting zero heads in six tosses is 0.015625.

The probability of getting exactly two heads in six tosses is 0.234375.

Step-by-step explanation:

Using the Minitab software for computing the desired probabilities.

We take n=6 and p=1/2 because we have six tosses and in binomial distribution the probability of success p remains constant in each trial whereas the probability of success in this case is getting heads.

When a coin is tossed then there are two possible outcomes head or tail.

So,

p= P(heads)=1/2=0.5

The probability of getting zero heads in six tosses is computed by considering the following steps:

In Minitab

Calc >Probability Distributions > Binomial

Select n=6 and p=0.5 and select input constant=0 and bubble the probability and by clicking OK we get the following output:

Probability Density Function

Binomial with n = 6 and p = 0.5

x P( X = x )

0 0.015625

So, the probability of getting zero heads in six tosses is 0.015625.

The probability of getting exactly two heads in six tosses is computed by considering the following steps :

In Minitab

Calc >Probability Distributions > Binomial

Select n=6 and p=0.5 and select input constant=2 and bubble the probability and by clicking OK we get the following output:

Probability Density Function

Binomial with n = 6 and p = 0.5

x P( X = x )

2 0.234375

So, the probability of getting exactly two heads in six tosses is 0.234375.

7 0

4 years ago