Question

A researcher performs an experiment to test a hypothesis that involves the nutrients niacin and retinol. She feeds one group of laboratory rats a daily diet of precisely 48.8 units of niacin and 27,375 units of retinol. She uses two types of commercial pellet foods. Food A contains 0.22 unit of niacin and 135 units of retinol per gram. Food B contains 0.27 unit of niacin and 80 units of retinol per gram. How many grams of each food does she feed this group of rats each day?

food A ...........g

food B ............g

Answer 1

Rd