Problema Solution
Medication is prescribed in 9 out of every 10 hospital emergency room visits that involve an injury. If a large urban hospital had 800 emergency room visits involving an injury in the past​ month, how many of these visits would you expect included a prescription for​ medication?
Answer provided by our tutors
Let 'x' represent the number of prescriptions for medication out of 800 emergency room visits.
x : 800 = 9 : 10
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click here to see the equation solved for x
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x = 720 medications prescribed
720 medications prescribed are expected out of 800 visits.