77.4k views
0 votes
If a 150 pound woman would receive 24 grams of a certain medicine. How many grams should a 120 pound woman receive?

1 Answer

5 votes

With a problem like this, set up a proportion (like when making lemonade from a mix).



(weight)/(medicine) = (weight)/(medicine) is our proportion.


We fill in the the two weights and the 24 grams of medicine in the proportion and solve for the fourth piece not there.



(150)/(24) =(120)/(M)


We shorten medicine to M and we solve for M by cross multiplying.



150M = 2880



M = (2880)/(150) = 19.2 grams


The woman should get 19.2 grams of medicine.



User Marin Leontenko
by
7.0k points