Answer:
x + y = 8
20x + 110y = 340
Step-by-step explanation:
Answer:
(x+7)(x-9) = 0
Step-by-step explanation:
x + 7 = 0
x = -7
x - 9 = 0
x = 9
well, in order to solve this we can put each marble into a fraction.
so for blue it would be 5 over 15 (5/15)
because there are 15 marbles in the bag but only 5 of them are blue!
but if you need a % then just divide the top by bottom
then you get a 33% chance of picking blue! hope this helps!
