Ask Question
8 September, 13:26

For every positive 2-digit number, x, with tens digit t and units digit u, let y be the 2-digit number formed by reversing the digits of x. Which of the followingexpressions is equivalent to x - y? a) 9 (t - u) b) 9 (u - t) c) 9t - u d) 9u - t e) 0

+3
Answers (1)
  1. 8 September, 14:04
    0
    a) 9 (t - u)

    Step-by-step explanation:

    x = 10t + u

    y = 10u + t

    x - y = 10t + u - 10u - t

    = 9t - 9u

    = 9 (t - u)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “For every positive 2-digit number, x, with tens digit t and units digit u, let y be the 2-digit number formed by reversing the digits of x. ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers