If an associate’s average sale to 5 customers is $125, and her sales to four of the customers are $200, $150, $125, and $75, what is the associate’s sale to the fifth customer?
$75
$50
$125
Not Here
$100
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OpenStudy (anonymous):
you only have to think about how you calculate average. Do you know?
OpenStudy (anonymous):
get the sum of all the numbers and divide by the number them
OpenStudy (anonymous):
correct! how can you use this here?
OpenStudy (anonymous):
so add all the $ amounts then divide by 5?
OpenStudy (anonymous):
when I do written problems I always think about what should be the variable x
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OpenStudy (anonymous):
here it should be the 5th customers sale, can you write an equation with that?
OpenStudy (anonymous):
have you given it up? :)
OpenStudy (anonymous):
got kicked off internet
OpenStudy (anonymous):
so the average is (200+150+125+75+x)/5 =125
this is the equation that you have to solve
OpenStudy (anonymous):
yeah Eliza did it :-)
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