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12 Sep 2016, 11:15
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The number of positive integer solutions for the equation x + y + z + t = 25 is
A. 2024
B. 2042
C. 2204
D. 2402
E. 2420
A. 2024
B. 2042
C. 2204
D. 2402
E. 2420
12 Sep 2016, 11:42
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hdwnkr
The number of positive integer solutions for the equation x +y +z + t = 25 is
A. 2024
B. 2042
C. 2204
D. 2402
E. 2420
Pls help with a shorter approach for this one
A. 2024
B. 2042
C. 2204
D. 2402
E. 2420
Pls help with a shorter approach for this one
The number of positive integer solutions for the equatio fx1+x2+⋯+xn=k
(k-1)C(n-1) - where k is the number and n is number of variable in the equation.
25-1 C 4-1 = 24C3 = 2024.
Option A.
12 Sep 2016, 11:44
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msk0657
hdwnkr
The number of positive integer solutions for the equation x +y +z + t = 25 is
A. 2024
B. 2042
C. 2204
D. 2402
E. 2420
Pls help with a shorter approach for this one
A. 2024
B. 2042
C. 2204
D. 2402
E. 2420
Pls help with a shorter approach for this one
The number of positive integer solutions for the equatio fx1+x2+⋯+xn=k
(k-1)C(n-1) - where k is the number and n is number of variable in the equation.
25-1 C 4-1 = 24C3 = 2024.
Option A.
Can you pls elaborate?
