bewellplus.gsu.edu
letlouisaBal letlouisaBal
  • 26-11-2016
  • Mathematics
Answered

The numbers in this sequence increase by 7 each time. 1 8 15 22 29 . The sequence continues in the same way. Will the number 777 be in the sequence? Yes or No.

Verified Answer :

Edufirst
Edufirst Edufirst
  • 30-11-2016

The numbers in the sequece minus 1 is a multiple of 7.

For example: 8 -1 = 7; 15 -1 = 14; 22 - 1= 21;  29 -1 = 28. All are multiples of 7.

What happen wiht 777? 777 - 1 = 776 which is not multiple of 7, then 777 is not in the sequence.

Answer: No. 

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