Mathematics, 24.10.2019 14:43, ekirk2021

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

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The cost of coffee is determined by the type of coffee beans that are mixed together. the cost of a...