Ask questions, share knowledge, and connect with a vibrant community on IDNLearn.com. Get prompt and accurate answers to your questions from our community of knowledgeable experts.
The sum of the digits of a two-digit counting number was 13. When the digits were reversed, the new number was 9 less than the original number. What was the original number?
so the number is xy ( this doesn't mean x times y) x+y=13 yx=xy-9 the digits cannot be the same they must add up to 13 so they cannot be positive so the number pairs are single digits so 9+4 8+5 7+6 the possible numbers pairs are 94 and 49 85 and 58 76 and 67 we find the differences 94-49= greater than 9 85-58= greater than 9 76-67=9
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Your search for solutions ends here at IDNLearn.com. Thank you for visiting, and come back soon for more helpful information.
