1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kogti [31]
3 years ago
12

Help and pls give me a explanation

Mathematics
2 answers:
Novay_Z [31]3 years ago
7 0

Answer:

90

Step-by-step explanation:

irakobra [83]3 years ago
6 0
The answer is:


90

Hope that helps.
You might be interested in
Kiersten runs a website that helps people learn to programme. Every month, Kiersten receives a subscription fee of a 10 from eac
blondinia [14]
1,200?? I'm not really sure tho
6 0
3 years ago
A physical fitness association is including the mile run in its secondary- school fitness test. the time for this event for boys
liberstina [14]

Answer:

<u>The probability that a randomly selected boy in school can run the mile in less than 348 seconds is 1.1%.</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

μ of the time a group of boys run the mile in its secondary- school fitness test  = 440 seconds

σ of the time a group of boys run the mile in its secondary- school fitness test = 40 seconds

2. Find the probability that a randomly selected boy in school can run the mile in less than 348 seconds.

Let's find out the z-score, this way:

z-score = (348 - 440)/40

z-score = -92/40 = -2.3

Now let's find out the probability of z-score = -2.3, using the table:

p (-2.3) = 0.0107

p (-2.3) = 0.0107 * 100

p (-2.3) = 1.1% (rounding to the next tenth)

<u>The probability that a randomly selected boy in school can run the mile in less than 348 seconds is 1.1%.</u>

4 0
3 years ago
Read 2 more answers
Help on this question please!!!
OLga [1]

Answer:

Hello! Here is your answer

Step-by-step explanation:

112=4(28)

a=4b

You can only have one variable so:

Combine b to a:

a-b=84

4b-b=84

Divide both sides by 3:

3b/3=84/3

b=28

But that is not it:

Sum of both cards:

a+b

a=112

b=28

112+28=140

          = 140

I hope I was of help.  If not please let me know! Thank you! Good luck!

4 0
3 years ago
Alison does 8 math problems in 2 minutes. How long will it take her to do a set of 160 problems?
erastovalidia [21]

Answer:

40 min

Step-by-step explanation:

find unit rateeee  p=problems

8 p= 2 min

8/2=4

so Alison can do 4 math problems per minute

so 160/4= 40 minutes

hope this helps

5 0
3 years ago
Read 2 more answers
Answers: <br> a) 74<br> b) 108<br> c)49<br> d)51
lisabon 2012 [21]

Answer:

51

Step-by-step explanation:

sum of exterior angles = 360

64  + 60 + 69 + 42 + x + x +23 = 360

2x + 258 = 360

2x = 360 - 258

2x = 102

x = 51

5 0
3 years ago
Read 2 more answers
Other questions:
  • as you did during the lesson, label and represents the product or quotient by drawing disks on the place value chart 10 x 4 thio
    5·1 answer
  • Item 18 You and your friend are standing back-to-back. Your friend runs 20 feet forward and then 15 feet right. At the same time
    14·2 answers
  • ​Claim: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random sample of 125 adult​ males,
    8·1 answer
  • ANSWER ASAP I WILL GIVE BRAINLIEST!!!! Match each equation with the number that makes it true.
    7·1 answer
  • Please help me out :))))))
    11·1 answer
  • Omar has 2 3/4 cups of dough to make dumplings. If he use 3/16 cup of dough for each dumpling, how many whole dumplings can Omar
    12·1 answer
  • How do you solve: x-27=62<br> I also need the answer
    5·2 answers
  • CFISD
    5·1 answer
  • 5)<br> Find the slope<br> Please I need help this is the last test of the school year
    10·1 answer
  • La ecuación h(x) =23 es lineal?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!