Brittany2896 Brittany2896

29-05-2021
Mathematics

contestada

W varies directly with the square of n and when n = 3, W = 117. Find n when W = 637

n =

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Аноним Аноним

30-05-2021

Answer:

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

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