Bought a set of 20 markers for 6 dollars how much would 1 market cost

$.30 cents

Step-by-step explanation:

Set up a ratio.

If 20 markers cost $6, 1 marker would cost ??

20/6 = 1/x

Cross multiply to solve.

20x = 6 so x=6/20 which is .30

3 dollars of cource use a calculator and dont waste points.

answer: 12

step-by-step explanation:

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: