Roberto needs 10 kilograms of clay for a ceramics project. He already has three pieces that weigh 1.3 kg, 2.4 kg, and 0.9 kg. How much more clay does he need?

Roberto needs 5.4 kg of clay more than the weight of the three piecesto finish his projectStep-by-step explanation:The given is:1. Roberto needs 10 kilograms of clay for a ceramics project2. He already has three pieces that weigh 1.3 kg, 2.4 kg, and 0.9 kgWe need to find how much more clay he needsAt first lets add the weight of the three pieces∵ The first piece weigh 1.3 kg∵ The second piece weigh 2.4 kg∵ The third piece weigh 0.9 kg∴ The weight of them = 1.3 + 2.4 + 0.9∴ The weight of them = 4.6 kg∵ He needs 10 kilograms to finish his project- Subtract the sum of the three pieces from 10∴ He needs = 10 - 4.6∴ He needs = 5.4 kgRoberto needs 5.4 kg of clay more than the weight of the three pieces to finish his projectLearn moreYou can learn more about word problems in brainly.com/question/1096947#LearnwithBrainly