Patricia M.

asked • 01/07/18

how many children are taking their own packed lunch?

30 children are going on a trip.
 
It costs $5 including lunch.
 
Some children take their own packed lunch.
 
They pay only $3
 
The 30 children pay a total of $110

1 Expert Answer

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Mark M. answered • 01/07/18

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p represents children with a packed lunch
30 - p represents children purchasing lunch
5(30 - p) + 3(p) = 110
 
Can you solve for p and answer? 
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Patricia M.

5 (30 - 20) + 3 (20) = 110
 
so there were 10 children who paid $5 each and there were 20 children who paid $3
 
woah thanks
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01/07/18

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