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QUESTION
The cost of coffee is determined by the type of coffee beans that mixed together. The cost of a local mix of arbica and robusta beans is modeled by the equation below , a is ponds of arbica and r =pou
The cost of coffee is determined by the type of coffee beans that mixed together. The cost of a local mix of arbica and robusta beans is modeled by the equation below , a is ponds of arbica and r =pounds of robusta 700 a+1200r=1,000,000 If a mixture contains 100 pounds of Arabica beans, how many pounds of robusta should be in the mix
R= __________ pounds
