How many kilograms of coffee worth $9.40/kg must be mixed with coffee worth $11/kg to give 12 kg of coffee worth $9.50/kg?

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Carter drank 15.75 gallons of water in 4 weeks. he drank the same amount of water each day. a. estimate how many gallons he drank in one day. b. estimate how many gallons he drank in one week. c. about how many days altogether will it take him to drink 20 gallons?

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry