.05x/(100-x)=25 (in millions)
2500-25x = 0.05x
x= 2500/25.05 = 99.8%
Repeat same calculation for 30 millions.
a city's main well was recently found to be contaminated with trichloreathylene (a cancer-causing chemical) as a result of an abandoned chemical pump that leached chemicals into the water. a proposal submitted to the city council indicated that the cost, in millions of dollars, of removing x% of the toxic pollutants is
.05x/100-x
if the city could raise between $25 and $30 million for the purpose of removing the toxic pollutants, what is the range of pollutants that could be expected to be removed?
1 answer
1 answer