+0  
 
0
45
1
avatar

In 1960, there were 450,000 cases of measles reported in the U.S. In 1996, there were 500 cases reported. How many cases of measles would have been reported in 1987 if the number of cases reported from 1960 to 1996 decreased linearly?

 May 25, 2020
 #1
avatar+24440 
+1

Linearly means we can just get the average per year and then multiply by the number of years...

 

from 1960 to 1996 is 36 years

450 000 to 500     is a drop of 449500 cases

 

-449 500 / 36 = - 12486.11 cases per year

from 1960 to 1987  is 27 years

 

450 000  -  27 yr  * 12486.11 cases/year = 112875 cases

 May 25, 2020

4 Online Users

avatar