Answers edited by alyssialui

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• How do you simplify #\frac{1}{10}-\frac{3}{5}#?
  
• How do you solve #\frac{6}{5} = \frac{2}{n + 5}#?
  
• A piece metal weighing 20.32 grams is added to a flask with a volume of 24.5 mL. It is found of that 18.52 grams of water (d = 0.9970 g/ml) be added to fill the flask. What is the density of the metal?