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jwilliamsstudent
25.11.2019 •
Mathematics
If m and n are positive integers such that the greatest common factor of and is 45, then which of the following could n equal?
(a) 3
(b) 5
(c) 9
(d) 15
(e) 45
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Ответ:
is
gcd(m*m*n*n, m*n*n*n) =m*n*n=
what we did, was to see how many m's and how many n's, each expression have, and then pick the smallest of each letter (factor).
the reason is that the common factor, must have enough m's and n's to divide the m's and n's of both expressions
so
also
thus, n is equal to 3
A)3
Ответ:
10 decameter =1hm
Step-by-step explanation: 2.54 cm isn't even close to a foot
1km actually= a 4-5 miles so 100km is about 500 miles 12 inches is a foot 3 feet is a yard
10 decameters goes into 1hm