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Mathematics 21 Online
OpenStudy (anonymous):

Medal for some help :) Suppose y varies directly with x, and y is 24 when x is 8.What is the value of y when x =10? a. 10 b.30 c.80 d.240

OpenStudy (anonymous):

b

OpenStudy (anonymous):

say y=kx if y=24 x=8 then 24=8k =>k=3 so now if x=10 y=kx gives y=8*10=80 so y=80

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