For example, when a distance is reported as “5.2 kilometers,” we know that the quantity has been expressed in units of kilometers and that the number of kilometers is 5.2. Not only will this be confus...For example, when a distance is reported as “5.2 kilometers,” we know that the quantity has been expressed in units of kilometers and that the number of kilometers is 5.2. Not only will this be confusing to the medical professional giving the dose, but the consequences can be dire: 100 mg given three times per day can be effective as an anticonvulsant, but a single dose of 100 g is more than 10 times the lethal amount.
A ratio is the quotient of two numbers or the quotient of two quantities with the same units. A rate is the quotient of two quantities with different units. You must include the units. A proportion sa...A ratio is the quotient of two numbers or the quotient of two quantities with the same units. A rate is the quotient of two quantities with different units. You must include the units. A proportion says that two ratios (or rates) are equal.
