The answer is 210 children tickets were sold . if you multiply the first equation by 7 it would be 7x+7y=2590. then subtract equation 2 from 1 you will have 4x=840 so x=210. Also you can use substitution method.
Answer:3
Step-by-step explanation:
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Answer:
7
/10 0.7
Step-by-step explanation:
To add fractions, find the LCD and then combine.
