A photographer mixes a concentrated chemical in a ratio of 2 parts chemical for every 9...

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A photographer mixes a concentrated chemical in a ratio of 2 parts chemical for every 9 parts of water. How many ounces of chemical is necessary to make a 4-qt total mixture? (1 qt = 32 oz). Round to tenths. In order to earn the full credit, you will need to set up the proportion and solve. A photographer mixes a concentrated chemical in a ratio of 2 parts chemical for every 9 parts of water. How many ounces of chemical is necessary to make a 4-qt total mixture? (1 qt = 32 oz). Round to tenths. In order to earn the full credit, you will need to set up the proportion and solve.