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Mathematics 9 Online
OpenStudy (scienceteen8):

Which of the following is the missing value in the table above?

OpenStudy (scienceteen8):

OpenStudy (kayhoo22):

It could be anything, really. A possibility could be 30, but it could be anything.

OpenStudy (scienceteen8):

20 30 35 25 i knew i was forgeting something lol

OpenStudy (kayhoo22):

Okay

OpenStudy (danjs):

you can know that 10mm = 1 cm or realize that the relation from mm to cm is linear

OpenStudy (scienceteen8):

its 30?

OpenStudy (kayhoo22):

It does not have a specific answer, because the data you gave us is kind of open ended. It could be anything. You didn't give us enough information to fill it in.

OpenStudy (scienceteen8):

ok thnks though

OpenStudy (danjs):

cm and mm are related by some value k y = k*x using th epoint (x,y) = (4 cm,40 mm)

OpenStudy (danjs):

y = k*x 40 = k*4 k = 10

OpenStudy (danjs):

y = 10 * x #mm = 10 * #cm,

OpenStudy (danjs):

use 3 now for x, 3 cm will be 30 mm

OpenStudy (danjs):

are you doing direct proportions, or , 'varies directly ' probs?

OpenStudy (anonymous):

30mm

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