service station uses two kinds of cleaning solutions containing acid and water.​ "Type A" is 2% acid and​ "Type B" is 6​% acid. They want to mix the two to get 80 qt of a solution that is 5% acid. How many quarts of each should they​ use? Complete the following​ table, letting aequals the number of quarts of Type A and bequals the number of quarts of Type B

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