Alyssa and Carla have the same percentage of green marbles. Alyssa has 4 green marbles and 16 total marbles. Carla has 10 green marbles. How many of Carla's marbles are NOT green. Explain.

30

Step-by-step explanation:

Alyssa has 4 green marbles out of 16.

% Green = 4/16 * 100 % = 25 %

So, Carla's 10 green marbles are 25 % of her total.

Her total number of marbles is 10 * (100%/25 %) = 40 marbles.

Total = 40 marbles

-Green = 10 marbles

Not green = 30 marbles