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How many gallons of a 5% salt solution must be mixed with 50 gallons of a 9% solution to obtain a 7% solution?
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Find the value of x. round the length to the nearest tenth
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Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?
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How many gallons of a 5% salt solution must be mixed with 50 gallons of a 9% solution to obtain a 7%...
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