Check the angle. If it they are less than 90°<span> , so they will result in acute angles. </span>
All marbles together are 24 marbles. 14 of those are yellow marbles. 24 subtract 14 is 10. the probability of the marble not being yellow is 10/24
3w-13w=-20
Combine like terms
-10w=-20
divide both sides by -10
w=2