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Local groundwater has been contaminated with three industrial solvents. We wish to treat 1500 gpm of the water using air stripping in a column with 12 theoretical stages. What is your recommendation for the required air flow rate (in SCFM) to produce water that meets EPA standards. Use the data below for your solution. Please also calculate the concentrations of the organic species in the cleaned water. The concentrations are in ppm by weight.
Compound
1,2-Dichloroethane
85
0.005
Trichloroethylene
120
1,1,1-Trichloroethane
145
0.2
A scholarship provider has dollar 500,000 which she will invest today to fund a scholarship forever. She expects to receive 8 percent on her money every year.
Determine the NPV and IRR with and without mitigation and how should the environmental effects be dealt with when this project is evaluated?
cost of reinvested profits versus new common shares - dvm. using the data for each firm shown in the following table
Determine the total comprehensive income. Determine the total other comprehensive income as a percent of comprehensive income for Berkshire Hathaway. Why is unrealized appreciation (gain) included as part of other comprehensive income?
Write the value of the stock on the tree where pre-mature exercise of the American put is optimal. Report "0" if premature exercise of the option is not optimal.
Compute the degree of operating leverage at a sales level of $9,000,000 under both the present pay system and the proposed new one. Explain why there is a difference between your two values in {a}.
y = 16.3 + 2.3x1 + 12.1x2 - 5.8x3For this estimated regression equation SST = 1550 and SSE = 100. b. Use an F test and a .05 level of significance to determine whether x2 and x3 contribute significantly to the model.
Helen recently get a credit card with a nominal interest rate of 21%. With the help of card, she buy some new clothes for 250 dollar. The minimum payment on the card is only 20 dollar every month.
we have a 400000 30 year 12 mortgage. we want to knowa.the monthly mortgage payment.b.how much we need to pay the bank
What is the firms income tax liability and its after-tax income and what are the firm's marginal and average tax rates on taxable income?
A guitar manufacturer is considering eliminating its electric guitar division because its $ 76,000 expenses are higher than its $ 72,000 sales.
describe the economic and other business environmental factors that are likely to impact the availability of short term
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