The Celluloid Cinema sold 150 tickets to a movie. Some of these were child tickets and the rest were adult tickets. A child ticket cost $7.75 and an adult ticket cost $10.25. If the cinema sold $1470 worth of tickets, which system of equations could be used to determine how many adult tickets, a, and how many child tickets, c, were sold? A)a+c=150a+c=150
10.25a+7.75c=147010.25a+7.75c=1470< br />
B)a+c=150a+c=150
7.75a+10.25c=14707.75a+10.25c=1470< br />
C)a+c=1470a+c=1470
10.25a+7.75c=15010.25a+7.75c=150

D)a+c=1470a+c=1470
7.75a+10.25c=1507.75a+10.25c=150