English, 19.02.2021 19:50 20sgonzalez

I need help and quick! I don't have long!

Answers

Answer from: adreyan6221

Frist one- I think it is The second although i don knw the passage, The second question, 5 and 7 I hoped that helped :D

Explanation:

Answer from: Quest

you have approval for this story

explanation:

and also the mystery girl it might be someone that she might know in her school

Answer from: Quest

step-by-step explanation:

hello!

$x-children.ticket \\y-adult.ticket\\\left \{ {{x+y=450} \atop {2*x+5*y=1800}} \right. => \\ \left \{ {{x=450-y} \atop {2(450-y)+5y=1800}} \right. => \\\left \{ {{x=450-y} \atop {900-2y+5y=1800}} \right. => \\\left \{ {{x=450-y} \atop {900+3y=1800}} \right. => \\\left \{ {{x=450-y} \atop {y=\frac{1800-900}{3} }} \right. => \\\left \{ {{x=450-y} \atop {y=300}} \right. => \\\left \{ {{x=450-300=150} \atop {y=300}} \right.$

(x,y)=(150,300)

300 adult tickers were sold!

good luck!

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