Ten of them.
70
3
There are 19 integers between 1 and 100 containing a 5.
That would be the numbers in the form "32x" (where "x" can be any digit). In other words, ten numbers.
Numbers that have 3 tens range from 30 to 39. This includes all the integers from 30 to 39, which totals 10 numbers: 30, 31, 32, 33, 34, 35, 36, 37, 38, and 39. Therefore, there are 10 numbers that have 3 tens.
70
3
20
Well, let's see here, when we talk about numbers with 5 tens, we're looking for numbers between 50 and 59. There are 10 numbers in this range that have 5 tens. So, the answer is 10. It's a happy little math question that just wants to be solved.
Five
There are 19 integers between 1 and 100 containing a 5.
That would be the numbers in the form "32x" (where "x" can be any digit). In other words, ten numbers.
530
An infinite number.
there is 3 tens and 4 ones in the following number 34
70
Numbers that have 3 tens range from 30 to 39. This includes all the integers from 30 to 39, which totals 10 numbers: 30, 31, 32, 33, 34, 35, 36, 37, 38, and 39. Therefore, there are 10 numbers that have 3 tens.