How much of solution must drain and replace with pure water
The mechanic is working on the car with the 20-quart radiator having 60% antifreeze solution. How much of solution must he drain and replace with pure water to get the solution which is 50% antifreeze?
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Tara paid one-half of the lottery winnings to government for taxes. If she earned the total of $4000 on two investments in 1 year, then how much she won in lottery?
Coming back against current, his normal rate is decreased by 2 mph. If trip downstream takes 10 minutes and return trip takes 30 minutes, then how far is Barry's camp from fishing hole?
If they wish to make 50 pounds of mixture and sell for $1.92 per pond, how many pounds of each will they require to mix together?
How many milliliters (ml) of 4% solution must be added to 7 ml of 1% solution to get the 3% tetracycline solution for use in eyes of the fifteen year old?
Provided that the f(4) = 12 and f(7)=97.5. Write the linear equation in slope-intercept form for the line connection these point.
The charge for the taxi ride in New York City is $2.50 for first 1/4 of a mile, and then $0.30 for every additional 1/4 of the mile (rounded up to the nearest 1/4 mile). How far to go for $5.80?
Find population four days after first observation? How long does it take for population to triple in size? How long does it take population to reach 10,000?
Determine the symbolic expression for function, got from expression sin(x^2 + 7x +5). The common incorrect answer to (b) is sin(x^2 +7x +4).
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