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Question 671533: my sum of my digits is 16 the product of my digits is 64 what number am i?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! my sum of my digits is 16 the product of my digits is 64 what number am i?
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Assuming the number is a 2 digit number, let it be 10t + u
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Equations:
t + u = 16
t*u = 64
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Substitute for "t" and solve for "u":
t = 16-u
(16-u)u = 64
16u - u^2 = 64
u^2 - 16u + 64 = 0
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Factor:
(u-8)^2 = 0
u = 8
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Solve for "t":
t + 8 = 16
t = 8
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The number is 10t+u = 88
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Cheers,
Stan H.
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