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Sam has 105 marbles. 18 are red and the
rest are white. He placed the most number
of white marbles equally in 7 jars and
played with the remaining marbles. How
many marbles did he play with?

3

Step-by-step explanation:

105-18=87/7 12 12*7+18=102 so he was playing with three white marble

She played with 12 white marbles

Step-by-step explanation: If you subtract 18 from 105, it would give you 87

And when you divide 87 by 7, you should get 12.4285714286. You round it to the nearest tenth and you'll have 12 white remaining marbles.

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below: