Shelby and kelvin are doing a chemistry experiment. they need 5 ounces of a solution that is 65% acid and 35% is the water they have no undeluded acid in the chemistry lab, but they do have two flats of diluted acid. flask a contain 70% acid 30% to stillwater. flask b can take 20% acid and 80% to work. but a solution of equations that shelby and kelvin can use to determine how many ounces they need to pour from each flask to make their