scasemere
05.08.2019 •
Mathematics
50 points if you can ! ~urgent~ the function f(x) varies directly with x and f(x)=3 when x=12. what is the value of f(x) when x=40? a. 160 b. 4 c. 10 d. 480
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Ответ:
3/12 = y/40
cross multiply
(12)(y) = (3)(40)
12y = 120
y = 120/12
y = 10 < so f(x) or y = 10
Ответ:
150
Step-by-step explanation:
If u get it wrong sorry :(