You select a marble without looking and then put it back. If you do this 3 times, what is the best prediction possible for the n
umber of times you will pick a marble that is not green?
1 answer:
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Answer:
D
Step-by-step explanation:
Given y varies directly as x and z then the equation relating them is
y = kxz ← k is the constant of variation
To find k use the condition y = when x = 1 and z = 4 , then
= k × 1 × 4 = 4k ( divide both sides by 4 )
= k
y = xz ← equation of variation
When x = 6 and z = 3 , then
y = × 6 × 3 =
× 18 = 2 × 6 = 12