SOLUTION: The sports club committee makes 14 litres of a lemon drink for the refreshments. They mix lemon concentrate and water in the ratio 2:5. How many litres of lemon concentrate do they

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Question 956457: The sports club committee makes 14 litres of a lemon drink for the refreshments. They mix lemon concentrate and water in the ratio 2:5. How many litres of lemon concentrate do they use?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
[ lemon concentrate ] / [ water ] = +2%2F5+
[ lemon concentrate ] / [ lemon concentrate + water ] = +2%2F%28+2+%2B+5+%29+
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Let +x+ = liters of lemon concentrate used
+2%2F7+=+x%2F14+
+4%2F14+=+x%2F14+
+x+=+4+
4 litres of lemon concentrate are needed