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klio [65]
2 years ago
11

PLEASEEE HELP ILL GIVE BRAINLIST what is 21+3???? PLEASEEEEEE

Mathematics
2 answers:
sdas [7]2 years ago
4 0

Answer:

24

Step-by-step explanation:

24

weeeeeb [17]2 years ago
4 0
21 + 3 is equal to 24
You might be interested in
Help
eimsori [14]

Answer:

8,920 ÷ 80=111.5

892 ÷ 8=111.5

89.2 ÷ 0.08=111.5

.892 ÷ 0.008=111.5

Step-by-step explanation:

6 0
2 years ago
Brielle and Joshua are running a half marathon race, which is 13.1 miles long. It
Hitman42 [59]

Answer:Brielle will run the half marathon race faster.Brielle will take 1 hour 44 minutes and 48 seconds, Joshua will take 2 hours 37 minutes and 12 seconds

Step-by-step explanation:

10 / 1.25 = 8

8 minutes a mile

18 / 1.5 = 12

12 minutes a mile

Brielle will run the half marathon race faster.

8 x 13.1 =104.8

12 x 13.1=157.2

104.8 - 60=

44.8

60 seconds x .8= 48

Brielle will take 1 hour 44 minutes and 48 seconds

157.2 - 120 = 37.2

60 seconds x .2 = 12

Joshua will take 2 hours 37 minutes and 12 seconds

8 0
3 years ago
A major cab company in Chicago has computed its mean fare from O'Hare Airport to the Drake Hotel to be $28.75 , with a standard
bulgar [2K]

Answer:

Following are the solution to the given choices:

Step-by-step explanation:

Using chebyshev's theorem :

\to P(|(x-\mu)|\leq k \sigma)\geq 1- \frac{1}{k^2}\\\\here \\ \to \mu=28.75\\\\ \to \sigma=4.44

In point a)  

\to |(x-\mu)|= |20.17-28.75|=8.58 and \sigma=4.44 \\\\so, \\k= \frac{ |(x-\mu)| }{\sigma}

  = \frac{8.58}{4.44} \\\\ =1.9 \\\\ =2

value= (1- \frac{1}{k^2}) \times 100 \% =75\%

In point b)

\to (1- \frac{1}{k^2}) \times 100 \% =84\% \\\\\to (1- \frac{1}{k^2})=0.84 \\\\\to \frac{1}{k^2} =0.16 \\\\\to \frac{1}{k}=0.4\\\\ \to k=2.5 \\\\\to |(x-\mu)| \leq k \sigma  \\\\= |(x-\mu)|\leq 2.5 \times 4.44  \\\\  = |(x-\mu)|\leq 1.11 \\\\ =  (28.75\pm 11.1) \\\\\to \text{fares lies between}(17.65,39.85)

In point c)

\to 99.7 \% \\ lie \ between=28.75 \pm z(.03)\times \sigma \\\\ =28.75\pm 2.97 \times 4.44\\\\=(28.75\pm 13.1)\\\\=(15.65,41.85)\\

In point d)

using standard normal variate

x=20.17\\\\  z=-2 \\\\x=37.13\\\\ z=2\\\\\to P(20.17

8 0
3 years ago
I really need help with this. can someone please help me
Andreyy89
Michael owns a small paper company called Michael Scott Paper Co.  He has 5 clients and needs to sell them each a specific amount of paper.  They have each ordered 3 3/10 worth of boxes.  He has to find out how many paper boxes he has to sell and how much extra paper (in tenths) he has total.

IF you want to turn it into a question, add:

How many paper boxes is he selling?
5 0
3 years ago
a jar contains 100 gumballs. there are 26 blue gumballs, 30 green gumballs, 28 red gumballs, and 16 yellow gumballs. what is the
Mumz [18]

11/50 your welcome. please follow me

8 0
3 years ago
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