Brown rice costs $2 per pound, and beans cost $3 per pound. Lin has $12 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pounds of beans Lin buys

Brown rice costs $2 per pound, and beans cost $3 per pound. Lin has $12 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number of pounds of beans Lin buys and r be the number of pounds of rice she buys when she spends all her money on this meal. Which equation represents this situation?

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Brown rice costs $2 per pound, and beans cost $3 per pound. Lin has $12 to spend on these items to make a large meal of beans and rice for a potluck dinner. Let b be the number …

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