On field day, 1/10 of the students in mrs. brown's class competes in jumping events, 3/5 of the student competes in running events, and 1/10 competed in throwing events. what part of mrs. brown's class did not compete in jumping, running or throwing events?

0.85% : )

step-by-step explanation:

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.