Two identical blue boxes together weigh the same as three identical red boxes together. Each red box weighs 15.2 ounces. How much does one blue box weigh in ounces?
I need to find the weight of one blue box, so I will call that x. Since two blue boxes weigh the same as three red boxes, I can write an equation to relate them: 2x = 3 * 15.2. To isolate x, I can divide both sides by 2: x = 3 * 15.2 / 2. I can do this division in my head or with a calculator: x = 22.8. Therefore, one blue box weighs 22.8 ounces. 