1. Mr. Brock Lee opened a bag full of marbles that contained only purple and yellow marbles. The bag contains 16 marbles. Also on the bag it is advertised that there are three times as many yellow marbles as purple. Write
a system of equations to determine how many purple and yellow marbles are in the bag.
Let x: represent the number of purple marbles.
Lety: represent the number of yellow marbles.

x = 4 , y = 12
x = 12 , y= 4
x = 10 , y = 6
x = 6 , y = 10
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