about Cowling’s Rule for child sized doses of medication (number
92 on page 119 of Elementary
and Intermediate Algebra).
rule is another function for determining the child's dosage of a
drug. For this rule, the formula expresses
the child's dosage as d, the adult dosage as D and
the child's age as a.
d = D(a+1) 24
a) If a doctor prescribes 1000 milligrams of acetaminophen for an adult, then how many milligrams would she prescribe for a three-year-old child using Cowling's rule?
b) If a doctor uses Cowling's rule to prescribe 12.5 milligrams of a drug to a child when she would prescribe 75 milligrams to an adult, then how old is the child?
what the variables in the formula represent and show all steps in
the following five math vocabulary words into your discussion. Use
to emphasize the words in your writing (Do
not write definitions for the words; use them appropriately in
sentences describing your math work.