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
Lapatulllka [165]
3 years ago
13

Find the sum of the natural numbers from 1 to 50.

Mathematics
2 answers:
sleet_krkn [62]3 years ago
5 0

Answer:

1275

Step-by-step explanation:

You can use the formula to find the sum.

(This formula can be very helpful when you need to add up numbers)

(Let n be 50, and a be 1)

n/2 x (a+n)

Now, plug in the numbers.

50/2 x (1+50)

25 x 51=1275

<u>Final answer</u>

1275

fiasKO [112]3 years ago
4 0

Answer:

1275

Step-by-step explanation:

You might be interested in
The formula for the circumference of a circle is c= 2pi r, where r is the radius. Rearrange the formula to solve for our and sel
ratelena [41]

Answer:  r = C/(2pi)

This is the same as writing r = \frac{C}{2\pi}

=========================================================

Explanation:

pi is some number (approximately 3.14) which means 2pi is also some number (roughly 6.28)

Saying c = 2pi*r means we have 2pi times r, and the result is the circumference c. To isolate r, we'll undo the multiplication. We'll undo it by dividing both sides by 2pi like so

C = 2pi*r

C/(2pi) = r

r = C/(2pi)

in which we can write it like r = \frac{C}{2\pi}

So whatever C is, we divide it over 2pi (aka roughly 6.28) to get the radius.

-----------------

Extra Info (Optional Section):

As an example, let's say the circumference of the circle is 628 feet. This means the distance around the circle is 628 feet. So C = 628 would lead to...

r = C/(2pi)

r = C/(6.28)

r = 628/(6.28)

r = 100

So the radius would be roughly 100 feet.

8 0
3 years ago
Please decrease 90 by 20%
Mashcka [7]

Answer:

Step-by-step explanation:

90 by 20%

10%=9

20%=18

90-18=62

Hope u understand

4 0
2 years ago
Can Sombody help me real fast?
Stolb23 [73]

Answer:

45°

Step-by-step explanation:

Angles on a straight line add up to 180°.

135 + x = 180

x = 180 - 135

x = <u>45°</u>

3 0
2 years ago
Write a number sentence for the problem. Usefor the missing number. Then solve . 29 children rode their bikes to school. After s
Elza [17]

Answer:

well apperently all will ride home but i need you to type the question correctly so i know what your asking.  :)

Step-by-step explanation:


6 0
2 years ago
Helen earns 7.50 an hour at her job but if she works more than 35 hours in a week and is paid 1 and 1/2 times her regular salary
masha68 [24]
352.50 divided by 7.50 = 47
answer = 47 Hours
6 0
3 years ago
Other questions:
  • Which expression is equivalent to 17s - 10 + 3(2s +1)?
    15·1 answer
  • Solve for x 2/5x= 10
    6·1 answer
  • What is the value of the expression 2 + 32 ⋅ (5 − 1)?
    10·2 answers
  • Find the 90th term of the arithmetic sequence 16 , 21 , 26
    9·1 answer
  • If a watch cost $40 and you pay 6.5% sales tax, how much will the tax be
    8·2 answers
  • Laura borrowed $1,990 at 5% for 2 years. what was the total interest?
    12·1 answer
  • PLEASE HELP ITS DUE SOON!!!!
    9·1 answer
  • What is the check digit(d) for the UPC bar code <br> 7-25272-73070-d<br> A)8<br> B)3<br> C)4<br> D)2
    7·1 answer
  • Help please quick! show work please.<br> Use the area to find the value of x:
    10·2 answers
  • Prove these identities <br>(i) secx cosecx - cotx = tanx<br>​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!