7?
7 ones
A three digit number can be chosen in 9*10*10 = 900ways No. of ways to choose a three digit number without 7 is 8*9*9 = 648 ways probability of picking a three digit number that includes atleast one digit that is 7 is 1- (648/900) = 252/900 = 7/25
A 14-digit number is typically referred to as a "14-digit number." In mathematics, numbers are generally identified by the number of digits they contain, such as a 3-digit number, 7-digit number, etc. In computing, a 14-digit number may also be referred to as a "14-digit integer" or "14-digit numerical value."
Best way to answer this question is by figuring out the probability of a phone number not containing the number 7. There are 9 other numbers that are not a 7, so odds of each digit not being a 7 is 90%. For a 7-digit number, calculation would be 0.9*0.9*0.9*0.9*0.9*0.9*0.9 or 0.9^7. This equals 47.8%, which means the odds of a phone number containing at least one 7 is 100% - 47.8%, which is 52.2%. But phone numbers do not begin with 0 or 1, so if we account for that, the odds of the first digit not being a 7 is 7/8, not 9/10. We replace the first 0.9 with 0.875, and the result is 53.5%. There are other scenarios we can take out, like numbers that begin with 555, but I'll just leave it at that.
If the same 7 digits are used for all the combinations then n! = 7! = 7*6*5*4*3*2*1 = 5040 combinations There are 9,999,999-1,000,000+1=9,000,000 7-digit numbers.
What is the value of the digit 7 in the number 703,804,100?
In the number 6765982, the digit 7 is in the millions place. Its value is 7,000,000, as it represents seven million in the overall value of the number.
In the number 67.100, the digit 7 is in the tens place. This means its value is 70, as it represents seven tens. The overall value of the number is 67.100, but specifically, the value contributed by the digit 7 alone is 70.
It has no value because the digit 7 is not in the given number of 4.105
The face value of a digit is the value of the digit itself, regardless of its position in the number. In the numeral 574873, the face value of the digit 7 is 7. The difference between the face value of 7 and its place value in this number is 0, as the place value of 7 in this number is also 7 (tens of thousands place).
The value of the digit 7 in 17,462 is 700, as it is in the hundreds place. To find a number where the value of 7 is 70, it would need to be in the tens place. Therefore, the digit 7 in the number 70 has a value of 70, which is 10 times less than 700 in 17,462.
The digit 7 in the number 71 is in the tens place. In a two-digit number like 71, the rightmost digit is in the ones place and the leftmost digit is in the tens place. Therefore, the place value of the digit 7 in the number 71 is 70, which represents 7 tens.
In the number 709, the digit 7 is in the tens place. Therefore, its value is 7 multiplied by 10, which equals 70. The digit 7 represents 70 in this number, as it is in the tens place.
In the number 567890, the digit '7' is in the hundreds place. This means it represents 700 in the overall value of the number. Therefore, the digit of the 7 specifically is 7.
hundredth
In the number 3.957, the digit 7 is in the thousandths place. This means its place value is one-seventh of a whole, or 0.007. Therefore, the value of the digit 7 in this context is 0.007.
70