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Alecsey [184]
3 years ago
11

Pure acid is to be added to a 10​% acid solution to obtain 21 L of a 40​% acid solution.

Mathematics
1 answer:
Mazyrski [523]3 years ago
3 0

7 gallons of pure acid and 14 gallons of 10% acid

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In the second image below I have colored each ray with the end point E in a different color.

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Let M=macaws lifespan and D=dogs lifespan

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