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
vaieri [72.5K]
2 years ago
9

In the school cafeteria there are 20 seats at each table.

Mathematics
1 answer:
Mrac [35]2 years ago
8 0

Answer:

12.5

Step-by-step explanation:

you can solve this by dividing 250/20=12.5

You might be interested in
1 of 3
lara31 [8.8K]

Answer:

a

n

=

2

2

n

−

1

Step-by-step explanation:

hope this helps

3 0
3 years ago
If there are 360 g of radioactive material with a half life (decreased by half or 50% )of 1 hour, how much of the radioactive ma
Lostsunrise [7]

After 1 hour, 360 g decays to 180 g.

After another hour (total 2 hours), 180 g decays to 90 g.

After another hour (total 3), 90 g decays to 45 g.

After one more (total 4), 45 g decays to 22.5 g.

More quickly, with a half-life of 1 hour, the 360 g of starting material decays to

(360 g) / 2⁴ = 22.5 g

In general, if the half-life is 1 hour, then after <em>n</em> hours, an initial amount <em>A</em> of this substance decays according to

<em>A</em> / 2<em>ⁿ</em>

5 0
3 years ago
I need help with this pls! 15 points!
OLga [1]

Answer:

d

Step-by-step explanation:

8 0
2 years ago
Question 4<br> What is the value of x? n10 / n12 = n*<br> need answer will mark brainlist
Crazy boy [7]

Answer:

Step-by-step explanation:

\frac{n^{10}}{n^{12}}=n^x\\n^{10-12}=n^x\\n^{-2}=n^x\\x=-2

8 0
3 years ago
Suppose the circumference of a circle is 2 pi what is the area?
irina1246 [14]
 <span>Circumference of a circle = 2 π r 

(where r is the radius) 

Area of a circle = π r^2 

(where r is the radius) 

you have to find the radius

C = 2π unit 
r = 1 unit 

Area = π square units 
</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Describe the pattern 2, 4, 9, 11, 16, 18, 23
    12·2 answers
  • PLEASE HELP , will reward brainliest
    14·1 answer
  • These are all elapsed time question there are 3 questions.
    14·1 answer
  • Four bushels of oats weigh 58 kg. Find the constant variation
    9·1 answer
  • In 1985, there were 285 cell phone subscribers in the small town of Centerville. The number of subscribers increased by 75% per
    12·1 answer
  • it took team infinite dimensions 2 hours to hike 4 2/3 miles. what is their average speed in miles per hour?
    14·1 answer
  • A rectangle has one side that measures 3x + 1 and another that measures 4y + 3. Keith says that the perimeter of the rectangle i
    6·1 answer
  •  How long would it take an ostrich to run from Halifax to Vancouver it did not have to stop it run 80 km an hour
    5·1 answer
  • (-4, -7) , (-1,0) how to solve this geometry
    6·1 answer
  • What conditions would be enough to prove that P is the circumcenter of HJK ? Select all that apply.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!