Mathematics, 13.09.2019 01:30, bre644

Arabica coffee costs 28$ per pound and robusta coffee costs8.75 per pound how many pounds of arabica coffee should you mix with 5 pounds of robusta coffee to make a coffee blen that costs 12$ per pound?

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Arabica coffee costs 28$ per pound and robusta coffee costs8.75 per pound how many pounds of arabica...