Question

Use a transformation to solve the equation.

k/-4 = - 0.8












A.

k = –3.2








B.

k = –0.2








C.

k = 0.2








D.

k = 3.2

Answer 1

k/-4 = - 0.8,
make k the subject of the equation by multiplying through by -4,
this means, (k/-4) x -4 = - 0.8 x -4
this should give you k = -0.8 x -4, the negatives will cancel out to give you positive values,
so k= 3.2

your answer is D