SOLUTION: the bishop peak 4-H club is having its annual fundraising dinner. Adults pay $15 a piece and children pay $10 a piece. if the number of adult tickets sold is twice the number of c

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Question 667726: the bishop peak 4-H club is having its annual fundraising dinner. Adults pay $15 a piece and children pay $10 a piece. if the number of adult tickets sold is twice the number of childrens tickets sold and the total income is $1,600 how much of each kind of ticket did the 4-H club sell
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Establish variables
x = adults
y = children
...
15x + 10y = 1600
x = 2y
...
Substitute x into the first equation
15(2y) + 10y = 1600
30y + 10y = 1600
40y = 1600
...
Divide both sides by 40
highlight_green%28y+=+40%29 children's tickets
...
x = 2(40) = highlight_green%28x=80%29 adult's tickets
.....................
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