Pencils come in boxes of 10. how many boxes should erika buy is she needs 127 pencils? how many pencils will erika have left over after she gets what she needs out of the boxes? how many more pencils does she need to have 200 pencils? eureka math, have to show work.

13

10x13=130

she will have 3 pencils left over

130-127=3

she would need 70 more pencils (or 7 boxes)

130+70=200

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d

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: