Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $20 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pound of beans Lin

Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $20 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pound of beans Lin buys and r be the number of pounds of rice she buys when she spends all her money on this meal.

Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $20 to spend-example-1

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Brown rice costs $2 per pound, and beans cost $1.60 per pound. Lin has $20 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the numb…

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