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anonymous
 one year ago
If the counting numbers are written in order, what is the value of the 2015th digit written?
anonymous
 one year ago
If the counting numbers are written in order, what is the value of the 2015th digit written?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.01*9 + 2*(90) + 3*(x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01*9 + 2*(90) + 3*(x) = 2015

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0up to 608 would be 2013 digits, so 2 more digits would be 6.. 0? i think?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0if you count 0 as a counting number then its 6 if not then its 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Your answer is correct but can you be more specific and explain your answer a little better. 0 is correct not 6.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Explain how you got 0.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok there are 9 one digit numbers, 90 two digit numbers, so you start with 1 * 9 and add to that 2 * 90, so i get 189

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now going past 99 we have 3 digit numbers, if you included all 900 of them then it would exceed 2015

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01 * 9 + 2 * 90 + 3 * 900 is larger than 2015, so i know its somewhere in the three digit numbers

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so i assign a variable to the number of three digit numbers, i assign x to it giving me 1 * 9 + 2 * 90 + 3 *x

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0set that equal to 2015, giving me, 1*9 + 2*90 + 3x = 2015, then i solve for x and i get 608 and some decimals, so if i plug 608 in for x i end up with 2013 digits, so i just need two more digits, so next number is 609 2nd digit of that is 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0theres probably a better way of solving it but thats the best way i could think of

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay i understand thank you

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Numbers 1  9 account for first 9 digits Numbers 10  99 account for digits 10 through 189 Numbers 100  199 account for digits 190 through 489 Numbers 200  299 account for digits 490 through 789 Numbers 300  399 account for digits 790 through 1089 Numbers 400  499 account for digits 1090 through 1389 Numbers 500  599 account for digits 1390 through 1689 Numbers 600  699 account for digits 1690 through 1989 7007017027037047057067077 0 8709 ^ ^   digit no. 1990 digit no. 2015
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