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Mathematics 19 Online
OpenStudy (dragonkillerxs):

The cost of coffee is determined by the type of coffee beans that are mixed together. The cost of a local mix of Arabica and Robusta beans is modeled by the equation below, where A = the pounds of Arabica and R = pounds of Robusta: 700A + 1200R = 1,000,000 If a mixture contains 1000 pounds of Arabica beans, how many pounds of Robusta beans should be in the mixture? R = ________________ pounds Numerical Answers Expected!

OpenStudy (katherinkoon):

what grade is this

OpenStudy (dragonkillerxs):

9th

OpenStudy (mathstudent55):

Use the given equation. Replace A with 1000, and solve for R.

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