<PRE><B>Question 1101700</B>
(Adjusted Problem Statement)
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1000 people at concert. x were adults and y were kids. Adults price 10 Euro and kids price 5 Euro. Total sales revenue was 8750 Euros. How many were kids and how many were adults?
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The description literally is this system of equations:
{{{system(x+y=1000,10x+5y=8750)}}}


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