Video: Converting from Millilitres to Cubic Centimetres

A patient takes 4 mL of medicine two times a day. After how many days will he have taken 112 cm³?

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Video Transcript

A patient takes four milliliters of medicine two times a day. After how many days will he have taken 112 cubic centimeters?

In order to answer this question, we need to recall one of our conversions between capacity and volume. One milliliter of capacity is equal to one cubic centimeter of volume. The ratio of milliliters to cubic centimeters is one to one. This means that 112 cubic centimeters is the same as 112 milliliters. We are told that the patient takes four milliliters of medicine two times a day. Four multiplied by two is equal to eight. This means that the patient takes eight milliliters of medicine per day.

We need to work out how many days it will take him to take 112 milliliters. This means we need to divide 112 by eight. One way of doing this is using the short division bus stop method. 11 divided by eight is equal to one remainder three. 32 divided by eight is equal to four. Therefore, 112 divided by eight is 14.

We can, therefore, conclude that it will take the patient 14 days to take 112 cubic centimeters of medicine.

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