Problema Solution
In 2007, twice as many people visited the doctor because of a caugh than a earache. The total number of doctors visits for these two alignments was reported to be 45 milliion.
a. x represents earaches, write expresion using x for the caughs reported in 2007.
b. write equation relating 45 million to the variable x.
c. solve equation from part b to determine the number of people who visited doctor in 2007 for an earache.
Answer provided by our tutors
let 'x' represent the number of people, in millions, who visited the doctor with an earache
then '2x' represents the number of millions of people who visited the doctor because of a cough
45 = x + 2x
45 = 3x
x = 45/3 = 15
15 million people visited the doctor with earaches in 2007