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 one year ago
how many numbers between 25 and 400 are divisible by 11? what is their sum?
 one year ago
how many numbers between 25 and 400 are divisible by 11? what is their sum?

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amistre64
 one year ago
Best ResponseYou've already chosen the best response.1well, it starts with the number 33

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0can u pls show the equation sir???

amistre64
 one year ago
Best ResponseYou've already chosen the best response.140025 = 375 possible results divide that by ll 375/11 = 34.1 so ill assume there is like 34 numbers in that

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0and the sum sir?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1there sum can be determined by the expression 33+11n from n=0 to 34 most likely

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0wait sir... 33+11n=????

amistre64
 one year ago
Best ResponseYou've already chosen the best response.134 11  34 34  374 11  385 11  396 .... found a few more

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1pfft, for got to add 33 :) 374 +33  407 so it looks like 34 is too large and 33 is perfect 0 to 33

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1this time i am right i double checked it

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0can i ask for the solution sir??? because the solution is greatly needed

amistre64
 one year ago
Best ResponseYou've already chosen the best response.133+11n i s a good expression yes since the first number divisible by 11 is 33

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0how to get the n sir???

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1\[\sum_{0}^{33}33+11n=\frac{33}{2}(33+374)\]

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1a=33 l=396 d=11 n=(39633/11)+1=35 sum=(35)(2(33)+34(11))/2 =7480 use the formula i gave u earlier

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=table+%2833%2B11n%29%2C+n%3D0..33

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0thanks to to all of you friends :D

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0why is sambhav answer is different?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1he most likely has a small error, or i do. but ive got the wolf to dbl chk me :) http://www.wolframalpha.com/input/?i=sum+%2833%2B11n%29%2C+n%3D0..33

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1hey @amistre64 ur formu;lla is correctbut ∑03333+11n=332(33+374) =6715.5

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1yeah, 374 should have been 396 :) but i accounted for that afterwards

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1you used another website for help i used my mind

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1at my age, the mind is not so good ;)

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0whats the correct answer monsieurs???

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1i have to look at my left foot just to remember what color sock i need to put on the right foot :)

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1∑03333+11n=(35/2)(33+396)=7507.5

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1whats ur age @amistre64

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0sambhav and amistre what again is the answer???

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1pls wait for a minute pls sorry for the argument between us

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0its just ok no hard feelings

amistre64
 one year ago
Best ResponseYou've already chosen the best response.10 to 33 is 34 numbers entotal 34(33+396)/2 = 7293

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0its right tnx for all your help ive got 2 numbers to go can u cooperate me or help me sir???

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1between the both of us, we are sure to work out all the wrinkles ;)

sambhav__jain
 one year ago
Best ResponseYou've already chosen the best response.1@bienes_joshua the write answer is 7293

bienes_joshua
 one year ago
Best ResponseYou've already chosen the best response.0much thanks of all your help i just need to finish the 2 problems i will close this question and write a new one :D

amistre64
 one year ago
Best ResponseYou've already chosen the best response.1starting an index at 1 makes life easier on the count but adds a little bit of complexity to the expression; therefore a modification that is equal is:\[\sum_{1}^{34}33+11(n1)\]
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