Posted by JOSHUA on .
The cost, in millions, to remove x% of pollution in a pond is modeled by the equation:
C=6350/(4253x)
.
What is the cost to remove 75% of the pollution?
Hint: Plug in and calculate, do not convert to a decimal.
Can someone tell me how figure this out step by step recheck my answer PLEASEEEEEE!!! I tried to recheck AND IT DIDN'T COME UP WITH SAME Answer due tommorrow help me please
cost = 6350/(425  3(.25)) =$ 14.967
it would cost about $15 million

Algebra 
Henry,
C = 6350 / (425  3x). x = 75%.
DO NOT CONVERT THE % TO DECIMAL!
C = 6350 / (4253*75),
C = 6350 / (425225),
C = 6350 / 200 = $31.75 M.