How many numbers between 1 and 100 have 5 tens explain?

The numbers between 1 and 100 that have 5 tens are those in the range of 50 to 59. This range includes the numbers 50, 51, 52, 53, 54, 55, 56, 57, 58, and 59, which totals 10 numbers. Each of these numbers has 5 as the tens digit.