A patient is supposed to drink a 300-ml bottle of magnesium citrate prior to his X ray study. He has to be able to drink 180ml. what portion of the bottle remains ? (express your answer as a fraction in lowest terms.)

asked Sep 4, 2016 in Word Problem Answers by kayla023 (140 points)

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

120ml of citrate remains. This is 120/300 of the original amount=2*60/5*60=2/5.

answered Sep 4, 2016 by Rod Top Rated User (429,360 points)
Thanks for your answer. Can you do a step to step of how you got the answer to the word problem?

We started with 300ml of citrate and the patient drank, or was supposed to drink 180ml. 300-180=120ml, is how much is left in the bottle. So the fraction remaining is (what's left)÷(how much there was in the bottle initially)=120/300. This can be reduced in steps: first divide top and bottom by 10 (just take off the last zero): 12/30. 6 goes into 12 and 30 so we divide top and bottom by 6: 2/5. We can't divide any more so 2/5 is the final fraction.

Got it! thank u for your help!
You're very welcome!
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
78,075 questions
81,871 answers
1,827 comments
61,262 users