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goblinko [34]
3 years ago
7

in a class of 40 students, all play at least one sport. if 21 students play basketball, 18 play soccer, 15 play volleyball, and

6 students play exactly two sports, then how many play all three sports?
Mathematics
1 answer:
Minchanka [31]3 years ago
4 0
20 students play all three sports
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1s22s22px22py22pz23s23px23py23pz2
matrenka [14]

Given :

Electronic configuration of an electron :

1s^2\ 2s^2\ 2p_x^2\ 2p_y^2\ 2p_z^2\ 3s^2 \ 3p_x^2\ 3p_y^2\ 3p_z^2 .

To Find :

The element having such an electronic configuration .

Solution :

We know , the sum of all the power of s and p in all the orbit gives total number of atoms in elements .

So , atomic number is :

Z=2+2+(2+2+2)+2+(2+2+2)\\\\Z=18

Since , the atomic number is 18 .

Therefore , the element is Argon .

Hence , this is the required solution .

6 0
3 years ago
A girl has 11 coins in dimes and quarters. Their value is $1.55. How many quarters does she have?
igomit [66]

Answer:

3

Step-by-step explanation:

pretty simple if she has 8 it wouldnt make sense

5 that means shell have 6 simed with $1.25 worth of money

sooooooooo yeah

3 0
3 years ago
Hi i really need help so please try to answer these the best you can its multiple choice
finlep [7]
Answers are 2 and 3

supplementary angles and adjacent angles
8 0
3 years ago
An airplane was cruising at 23,000 feet altitude. Due to turbulence it dropped 4,300 feet.Once the air currents leveled off he w
vladimir1956 [14]

Answer:

-700 feet, aka 700 feet below/away from the original cruising altitude

4 0
3 years ago
Lashonda started to run on a treadmil, after setting it's timer for 64 minutes, The display states that she has finnished 68% of
Lynna [10]

Step-by-step explanation:

It is 64*0.32=20.48 minutes or 20.5 minutes.

6 0
3 years ago
Read 2 more answers
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