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10 Nov 2019
1. A nurse has two solutions that contain different concentrations of a certain medication. One is a 20% concentration and the other is a 5% concentration. How many cubic centimeters of each should he mix to obtain 10 cc of a 15.5% solution?
20% :
5% :
2.One safe investment pays 2% per year, and a more risky investment pays 12% per year. A woman who has $142,000 to invest would like to have an income of $9,640 per year from her investments. How much should she invest at each rate?
2%:
12%:
1. A nurse has two solutions that contain different concentrations of a certain medication. One is a 20% concentration and the other is a 5% concentration. How many cubic centimeters of each should he mix to obtain 10 cc of a 15.5% solution?
20% :
5% :
2.One safe investment pays 2% per year, and a more risky investment pays 12% per year. A woman who has $142,000 to invest would like to have an income of $9,640 per year from her investments. How much should she invest at each rate?
2%:
12%:
Nelly StrackeLv2
22 Mar 2019
