anthonymillsap9766 anthonymillsap9766
  • 01-01-2018
  • Mathematics
contestada

How many positive palindromic integers are 5 digits long 5-digit long and contain 7 or 8?

Respuesta :

Rod44 Rod44
  • 01-01-2018
If the integers only contain digits 7 or 8 we have to consider 3-digit integers:
777
778
787
877
788
878
887
888
The palindromes would then be:
77777
77877
78787
87778
78887
87878
88788
88888
So there are 8 palindromic integers.


Answer Link

Otras preguntas

jessicas shoebox is 20 centimeters long and 10 centimeters wide. how many more millimeters is the length of the shoebox than the width
Please help??? Science SEMESTER REVIEW!!!!In a series of rock layers, a geologist finds fossils of a pine trees and oak trees in layers that are 1.0 m and 1.5
Wanda, the Channel 1 weather person, said there was a 30% chance of rain on Saturday and a 30% chance of rain on Sunday. Should Wanda be fired? HELP PLEASE
What's the answer to this problem?
Convert 79 oz to _____ g Round answer to the nearest whole gram.
Ratio equal to the ratio given 12:7
who decided the election of 1800 and why ?
What causes chemical weathering?
Convert 79 oz to _____ g Round answer to the nearest whole gram.
How did the early voyages of discovery change european trade routes?