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Mathematics 23 Online
OpenStudy (anonymous):

I need algebra help someone pleaseee

OpenStudy (saifoo.khan):

Sure. Post your problems.

OpenStudy (anonymous):

the revenue for a company is given by the equation R =-.1x ^{2}+95x where x is the number of units sold. how many units must be sold to yield the max revenue? what is the max revenue?

jimthompson5910 (jim_thompson5910):

the max occurs at the vertex do you know how to find the vertex?

OpenStudy (anonymous):

yes so that is 475

OpenStudy (anonymous):

and then after that I am stuck :/

jimthompson5910 (jim_thompson5910):

ok so that is the x coordinate of the vertex

jimthompson5910 (jim_thompson5910):

once you have that, you plug it into the given function

jimthompson5910 (jim_thompson5910):

R =-.1x^2+95x R =-.1(475)^2+95(475) R = ???

OpenStudy (anonymous):

22,563.5?

jimthompson5910 (jim_thompson5910):

close

jimthompson5910 (jim_thompson5910):

R = 22562.5 actually

OpenStudy (anonymous):

so that is the maximum units sold? or the maximum revenue?

jimthompson5910 (jim_thompson5910):

so 475 units must be sold to get a max revenue of $22,562.50

jimthompson5910 (jim_thompson5910):

x = # of units y = revenue

OpenStudy (anonymous):

oh okay thank you for your help

jimthompson5910 (jim_thompson5910):

yw

OpenStudy (anonymous):

wait everytime I do the equation I get 22563.5

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