misslux
30.05.2021 •
Mathematics
W varies directly with the square of n and when n = 3, W = 117. Find n when W = 637
n =
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Ответ:
n = 7
Step-by-step explanation:
Varies directly
w/n² = k
when n = 3, W = 117
k =117/3²
k = 117/9
k = 13
Find n when W = 637
637/n² = 13
637 /13 = n²
49 = n²
7 = n
Ответ: