SOLUTION: Mary had a beaker filled with water. She gave 1/2 to Jim and used 1/2 for herself. She had 225 ml left. How much was originally in the beaker?

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Question 18425: Mary had a beaker filled with water. She gave 1/2 to Jim and used 1/2 for herself. She had 225 ml left. How much was originally in the beaker?
Answer by MelanieBCC(40) About Me  (Show Source):
You can put this solution on YOUR website!
x%2A%281%2F2%29=225
divide both sides by 1/2
x%2A%281%2F2%29%2F%281%2F2%29=225%2F%281%2F2%29
becomes x=225%2F%281%2F2%29
applying the inverse property of fractions,
this becomes x=225%2A%282%2F1%29
which simplifies to x=225%2A2
giving the solution x=450