Tickets to the museum cost $18 for adults and $12 for children. A group of 20 people went to the museum, and the tickets cost $324. The system of equations models this situation, where x is the number of adults and y is the number of children.
How many adults and how many children were in the group?
8 adults and 12 children
10 adults and 10 children
12 adults and 8 children
14 adults and 6 children
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Isolate the x in the top equation
I DONT GET THIS AT ALLL
The answer would be D...
14 (adults) multiplied by 18 (price for adults) equals 252!
6 (children) multiplied by 12 (price for children) equals 72!
252 + 72 = 324
Okay. The top equation is the simplest so it would be best to work with that first. The equation is x+y=20. To isolate the x you need to move everything from the left to the right, not including x. To do this you must subtract y from both sides to get x=20-y. From here you plug that into the second equation to get your y coordinate