document.write( "Question 719221: The coffee variety Arabica yields about 900 kg of coffee beans per hectare, while Robusta yields about 1100 kg per hectare. Suppose that a plantation has a hectares of Arabica and r hectares of Robusta. Write an equation relating a and r if the plantation yields 40000 kg of coffee. Do not enter any commas or units in your answer. \n" ); document.write( "
Algebra.Com's Answer #441255 by stanbon(75887)\"\" \"About 
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The coffee variety Arabica yields about 900 kg of coffee beans per hectare, while Robusta yields about 1100 kg per hectare. Suppose that a plantation has a hectares of Arabica and r hectares of Robusta. Write an equation relating a and r if the plantation yields 40000 kg of coffee. Do not enter any commas or units in your answer.
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\n" ); document.write( "Weight of beans Eq: 900a + 1100r = 40,000
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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