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Solve for x.

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?