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Levart [38]
3 years ago
6

What is the sum of all even numbers between 1 and 1000

Mathematics
1 answer:
weeeeeb [17]3 years ago
4 0
There are 500 even numbers from 1 to 1000 starting with 2 and ending with 998. The sequence of even numbers is an arithmetic sequence with a common difference of 2. Using the equation for the arithmetic series,

                                       S = (a1 + an)(n/2)
and substituting, 
                                     
                                        S = (2 + 998)(500/2)
we get, 

                                        S = 250,000

Therefore, the sum of all even numbers between 1 and 1000 is 250,000.

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Michael has 1.85 in dimes and nickels.He has a total of 25 coins.how many of each does he have
creativ13 [48]
D+n=25 subtract d from both sides *(if your wondering what d and n are it stands for Dimes and Nickels)* n=25-d   
0.10d+0.05= 1.85
0.10d+0.05(25-d)= 1.85
0.10d+1.25-0.05d= 1.85
0.05d = 0.60
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
My answer: He has 12 dimes (d=12) and 25-12=13 so 13 nickels.. Hope this helps! :)

5 0
3 years ago
one hundred ninety people apply for three jobs. sixty of the applicants are women. if three women are selected at random what is
NISA [10]
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3 0
3 years ago
Estimate a 15% tip on a dinner bill of 79.45 by first rounding the bill amount to the nearest ten dollars.
suter [353]

Answer: 12$

Step-by-step explanation:

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7 0
3 years ago
Can you tell me what is 26-4s=9s
wariber [46]
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6 0
3 years ago
Read 2 more answers
Whose method is correct?
boyakko [2]

Answer: Jaleel´s method is correct and the right option is option number D

Step-by-step explanation:

its because 2(x-2)

= 2x-4

note 2 is multiplied with both x and -2!

4 0
3 years ago
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