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The number of combinations of 7 items taken from a set of 10 can be calculated using the formula for combinations, which is ( C(n, r) = \frac{n!}{r!(n-r)!} ). For 7 in 10, this is ( C(10, 7) = \frac{10!}{7!(10-7)!} = \frac{10!}{7!3!} = \frac{10 \times 9 \times 8}{3 \times 2 \times 1} = 120 ). Thus, there are 120 combinations of 7 in 10.

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2mo ago

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Related Questions

If using 7 single digit numbers how many different combinations can you get?

Number of 7 digit combinations out of the 10 one-digit numbers = 120.


How many combinations of 7 numbers are there using 0 through 9?

The number of combinations of 7 numbers from 10 is 10C7 = 10*9*8/(3*2*1) = 120


How many combinations can you make with the numbers 2 3 6 7 and 8?

You can make 5 combinations of 1 number, 10 combinations of 2 numbers, 10 combinations of 3 numbers, 5 combinations of 4 numbers, and 1 combinations of 5 number. 31 in all.


How many heptagons can be drawn by joining the verticles of a polygon with 10 sides?

The answer is the number of combinations of 7 vertices from 10.That is 10C7 = 10!/(7!*3!) = 10*9*8/(3*2*1) = 120.And, there is no such word as verticles.The answer is the number of combinations of 7 vertices from 10.That is 10C7 = 10!/(7!*3!) = 10*9*8/(3*2*1) = 120.And, there is no such word as verticles.The answer is the number of combinations of 7 vertices from 10.That is 10C7 = 10!/(7!*3!) = 10*9*8/(3*2*1) = 120.And, there is no such word as verticles.The answer is the number of combinations of 7 vertices from 10.That is 10C7 = 10!/(7!*3!) = 10*9*8/(3*2*1) = 120.And, there is no such word as verticles.


What are the possible combinations of numbers 0 through 9 if any numbers cannot be repeated?

There are 10 combinations of 1 number,10*9/(2*1) = 45 combinations of 2 numbers,10*9*8/(3*2*1) = 120 combinations of 3 numbers,10*9*8*7/(4*3*2*1) = 210 combinations of 4 numbers,10*9*8*7*6/(5*4*3*2*1) = 252 combinations of 5 numbers,210 combinations of 6 numbers,120 combinations of 7 numbers,45 combinations of 8 numbers,10 combinations of 9 numbers, and1 combination of 10 numbers.All in all, 210 - 1 = 1023 combinations. I have neither the time nor inclination to list them all.There are 10 combinations of 1 number,10*9/(2*1) = 45 combinations of 2 numbers,10*9*8/(3*2*1) = 120 combinations of 3 numbers,10*9*8*7/(4*3*2*1) = 210 combinations of 4 numbers,10*9*8*7*6/(5*4*3*2*1) = 252 combinations of 5 numbers,210 combinations of 6 numbers,120 combinations of 7 numbers,45 combinations of 8 numbers,10 combinations of 9 numbers, and1 combination of 10 numbers.All in all, 210 - 1 = 1023 combinations. I have neither the time nor inclination to list them all.There are 10 combinations of 1 number,10*9/(2*1) = 45 combinations of 2 numbers,10*9*8/(3*2*1) = 120 combinations of 3 numbers,10*9*8*7/(4*3*2*1) = 210 combinations of 4 numbers,10*9*8*7*6/(5*4*3*2*1) = 252 combinations of 5 numbers,210 combinations of 6 numbers,120 combinations of 7 numbers,45 combinations of 8 numbers,10 combinations of 9 numbers, and1 combination of 10 numbers.All in all, 210 - 1 = 1023 combinations. I have neither the time nor inclination to list them all.There are 10 combinations of 1 number,10*9/(2*1) = 45 combinations of 2 numbers,10*9*8/(3*2*1) = 120 combinations of 3 numbers,10*9*8*7/(4*3*2*1) = 210 combinations of 4 numbers,10*9*8*7*6/(5*4*3*2*1) = 252 combinations of 5 numbers,210 combinations of 6 numbers,120 combinations of 7 numbers,45 combinations of 8 numbers,10 combinations of 9 numbers, and1 combination of 10 numbers.All in all, 210 - 1 = 1023 combinations. I have neither the time nor inclination to list them all.


How many 7 digit combinations can you have if you can only use the numbers 0 through 9 once each?

10!/3! = 604800 different combinations.


How many 10 digit combinations can be made with 10 digits?

Allowing repeats, but not leading 0s, the answer is 9,000,000,000


How many 4 number combinations are there in the number 0 to10?

The number of combinations is 10C4 = 10*9*8*7/(4*3*2*1) = 210


How many combinations can you make using the numbers 7 10 39 44 55 12?

26 = 64 combinations, including the null combination - which contains no numbers.


How many 6 digit combinations can be made from digits 0 to 9?

10C6 = 10*9*8*7/(4*3*2*1) = 210 combinations.


How many combinations can you get with 10 numbers?

10*10


How many combinations can you make out of 3 letters and 3 numbers?

You could make 10*10*10*26*26*26 combinations, or 17576000 combinations.