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3 years ago

8

The value of N is both 5 times as much as the value of M and 36 more than the value of M. What are the values of N and M? Explai

n.

1 answer:

Nitella [24]3 years ago

7 0

180 but i dont know if thats exactly right my friend
just told me so its probably not even right

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A train leaves Little Rock, Arkansas, and travels north at 70 kilometers per hour. Another train leaves at the same time and tr

Ipatiy [6.2K]

Train A speed= 70 km/h north
Train B speed= 75 km/h south
Opposite directions= add speeds 70+75=145
Distance= 435 Km
Time= d/s; 435/145= 3 hours
It would take 3 hours for the trains to be 435 kilometers apart

4 0

4 years ago

In a recent survey, 10 percent of the participants rated Pepsi as being "concerned with my health." PepsiCo's response included

hichkok12 [17]

Answer:

The statistic for this case would be given by:

$z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67$

Step-by-step explanation:

Infromation provided

n=100 represent the random sample selected

X=18 represent the people who rates Pepsi as being "concerned with my health"

$\hat p=\frac{18}{100}=0.18$ estimated proportion of people who rates Pepsi as being "concerned with my health"

$p_o=0.1$ is the value that reference to compare

z would represent the statistic

Hypothesis to test

For this case we can assume that the interest is check if the proportion of people who rates Pepsi as being "concerned with my health" is equal to 0.1 or not , then the system of hypothesis are:

Null hypothesis: $p=0.1$

Alternative hypothesis: $p \neq 0.1$

The satistic for this one sample proportion test is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info given we got:

$z=\frac{0.18 -0.1}{\sqrt{\frac{0.1(1-0.1)}{100}}}=2.67$

7 0

3 years ago

How can I solve this?

lord [1]

X=4 see attached steps

3 0

3 years ago

Help! worth 31 points plz help and brainliest plz plz all the answers for brainliest!!!!

Paha777 [63]

Answer:

to hard.

Step-by-step explanation:

4 0

3 years ago

A survey of college students resulted in the following information:

AnnyKZ [126]

Answer:

Shoe survey:

1.) 34 people were surveyed

2.) 8 people own Adidas ONLY

Allergies:

3.) 14 people not allergic

4.) 9 people are allergic to milk

5.) 23 people are allergic to 1 thing or " less than 2 foods"

6.) They said "or" in the question but here's both answers: 14 to milk and 18 to banana

Love the Actors:

7.) 21 people like Will Smith

8.) 2 people who don't like either

Step-by-step explanation:

1.) It said 20 people own BOTH brands so subtract 20 from the Nike shoes & Adidas shoes, giving 4 people who only use Nike and 8 people who use Adidas, don't forget the 2 who have neither. Add 20+4+8+2=34

2.) As we found out (above) there are 8 people who use Adidas

3.) Keep in mind there are 50 people were surveyed, add all the numbers

( =36) then subtract 50 (the total) minus 36 giving you 14

4.) Add 6( only milk) + 3( banana &milk)= 9

The rest is to long and don't want to keep you wanting

I did the math thou... hope this helps :)

8 0

3 years ago