SOLUTION: A 6000 Litre tank has a 25% saltwater mixture. How much water is needed to make the mixture 23%?

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Question 957863: A 6000 Litre tank has a 25% saltwater mixture. How much water is needed to make the mixture 23%?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = litres of water to be added
+.25%2A6000+=+1500+ = litres of salt in 25% mixture
---------------------
+1500+%2F+%28+x+%2B+6000+%29+=+.23+
+1500+=+.23%2A%28+x+%2B+6000+%29+
+1500+=+.23x+%2B+1380+
+.23x+=+120+
+x+=+521.74+
521.74 litres of water are needed
check:
+1500+%2F+%28+521.74+%2B+6000+%29+=+.23+
+1500+%2F+6521.74+=+.23+
+1500+=+.23%2A6521.74+
+1500+=+1500.0002+
close enough