Medal
The dosage of a certain infant antibiotic prescribed by a pediatrician is determined by the weight of the infant in kilograms. If an infant who weighs 4.5 kilograms is given a shot containing 180 milligrams of this antibiotic, find the dosage rate for this medication in milligrams per kilogram (mg/kg).
? mg/kg

Question

Medal
The dosage of a certain infant antibiotic prescribed by a pediatrician is determined by the weight of the infant in kilograms. If an infant who weighs 4.5 kilograms is given a shot containing 180 milligrams of this antibiotic, find the dosage rate for this medication in milligrams per kilogram (mg/kg).
?  mg/kg

anonymous · Answer

divide

tkhunny · Answer

kilograms are mass, not weight.  Whatever...

anonymous · Answer

per means divided by

texaschic101 · Answer

180 mg to 4.5 kg
make a proportion
180/4.5 = x/1  --- 180 mg to 4.5 kg = 1 mg to x kg
cross multiply
4.5x = 180
x = 180/4.5
x = 40 mg per 1 kg...or 40/1

texaschic101 · Answer

oops..explained proportion wrong
180/4.5 = x/1 --- 180 mg to 4.5 kg = x mg to 1 kg

anonymous · Answer

so its ok 40