Claire the Cyberwoman has a syringe containing 20.5 mL20.5 mL of a chemical that makes vegetables taste better. She injects 3.5 mL3.5 mL into a piece of corn. How many millilitres (mLmL) of the chemical are left in the syringe?
Question
Claire the Cyberwoman has a syringe containing 20.5 mL20.5 mL of a chemical that makes vegetables taste better. She injects 3.5 mL3.5 mL into a piece of corn. How many millilitres (mLmL) of the chemical are left in the syringe?
Solution
Claire the Cyberwoman started with 20.5 mL of the chemical. She used 3.5 mL on a piece of corn. To find out how much she has left, you subtract the amount used from the starting amount.
So, you calculate 20.5 mL - 3.5 mL = 17 mL.
Therefore, Claire the Cyberwoman has 17 mL of the chemical left in the syringe.
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