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love history [14]

2 years ago

8

In a survey 7/8 of the people surveyed said that recycling is important. Only 1/2 of them buy products made with recycled materi

als. What fraction of the respondents buy products made with recycled materials?

1 answer:

morpeh [17]2 years ago

5 0

Answer:

only 3.5 buy products made with recycled material but you have to round it to 4

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A certain car model has a mean gas mileage of 34 miles per gallon (mpg) with a standard deviation A pizza delivery company buys

zubka84 [21]

Answer:

$z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028$

$z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441$

An we can use the normal standard table and the following difference and we got this result:

$P(-1.028$

Step-by-step explanation:

Assuming this statement to complete the problem "with a standard deviation 5 mpg"

We have the following info given:

$\mu = 34$ represent the mean

$\sigma= 5$ represent the deviation

We have a sample size of n = 54 and we want to find this probability:

$P(33.3 < \bar X< 34.3)$

And for this case since the sample size is large enough >30 we can apply the central limit theorem and then we can use this distribution:

$\bar X \sim N(\mu , \frac{\sigma}{\sqrt{n}})$

And we can use the z score formula given by:

$z=\frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n}}}$

And replacing we got:

$z =\frac{33.3- 34}{\frac{5}{\sqrt{54}}}= -1.028$

$z =\frac{34.3- 34}{\frac{5}{\sqrt{54}}}= 0.441$

An we can use the normal standard table and the following difference and we got this result:

$P(-1.028$

7 0

3 years ago

CAN SOMEONE PLEASE SOLVE AND EXPLAIN THIS FREAKING QUESTION????????????????????????????????????/PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEE

mr Goodwill [35]

Answer:

Step-by-step explanation:

sinx=(opposite side)/(hypotenuse)

There really is no ‘explanation’ as that ratio IS the definition of sin.

7 0

2 years ago

Read 2 more answers

4) What is the cost of 1st class ticket (x) and the cost of a coach ticket (y) *

Kobotan [32]

Answer:

1st class - 22 people

coach - 57 people

Step-by-step explanation:

$85 x 22 people = $1870

$60 x 57 people = $3420

22 people + 57 people = 79 people

$1870 + $3420 = $5290

6 0

3 years ago

Find m<1 in the rhombus below

Margarita [4]

Answer:

$m \angle \: 1 = 120 \degree$

Step-by-step explanation:

Given figure is of a rhombus.

Measures of the opposite angles of a rhombus are equal.

Therefore,

$m \angle \: 1 = 120 \degree$

6 0

2 years ago

A recipe for trail mix calls for 50 grams of almonds for every 2 cups of oats. The line represents the relationship between the

AnnyKZ [126]

Answer: for every 1 cups of oats there are 25 grams of almonds

Step-by-step explanation:

u would divide 50 by 2 and divide 2 by 2

3 0

2 years ago