Question

To control an infection, a doctor recommends that a patient who weighs 92 pounds be given 320 milligrams of antibiotic. If the antibiotic is given proportionally according to the patients weight, how much antibiotic should be given to a patient who weighs 138 pounds?

Answer 1

480 milligrams

Explanation:

92 138

—- ——-

320 X

Cross multiply

92x = 44160

—— ————

92 92

X = 480

Answer 2

Hello!

To control an infection, a doctor recommends that a patient who weighs 92 pounds be given 320 milligrams of antibiotic. If the antibiotic is given proportionally according to the patients weight, how much antibiotic should be given to a patient who weighs 138 pounds?

• Solution:

Weighs ........ milligrams

92 -------------- 320

138 ------------- X

multiply the means by the extremes

92*x = 320*138

92x = 44160

x = 44160/92

x = 480

• Answer:

b) 480 milligrams

________________________

`\bf\blue{I\:Hope\:this\:helps,\:greetings ...\:Dexteright02!}\:\:\ddot{\smile}`