The difference between a two-digit number and that number reversed is 18. What could the number be? List all the possibilities

9514 1404 393

  31, 42, 53, 64, 75, 86, 97

Step-by-step explanation:

The difference when the digits are reversed is 9 times the difference between the digits. The largest of the two numbers has tens digit n, and ones digit n-2, for n in {3, 4, 5, 6, 7, 8, 9}.

The possible numbers are ...

  31, 42, 53, 64, 75, 86, 97

__

Consider number to, where 't' is the tens digit, and 'o' is the ones digit. Then the difference in values between that number and its reverse is ...

  (10t +o) -(10o +t) = 9(t -o)

We want that difference to be 18, so ...

  9(t -o) = 18

  t - o = 2

Since we want the numbers to be 2-digit, the numbers 20 and 02 are ruled out. That is, 9 ≥ t ≥ 3, and 7 ≥ o ≥ 1.

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.

h= 12 inches

step-by-step explanation: