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yulyashka [42]
3 years ago
15

50 points if you can solve!!!!!!!!!!!!! ~URGENT~

Mathematics
1 answer:
alex41 [277]3 years ago
4 0
I do this a little differently then most.....but if it varies directly, then I make a proportion......and f(x) is the same as y

3/12 = y/40
cross multiply
(12)(y) = (3)(40)
12y = 120
y = 120/12
y = 10 <===== so f(x) or y = 10
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