marnie is cleaning her sink with a powder cleaning that is mixed in a proportion of 1/2 cup per 1 gallon of water . I f she only uses 1/2 gallon how much powder should she mix in?

Beth makes batches of bluberry muffins and banna muffins. each batchis 6 muffins. she makes 2.5 batches of bluberry muffins. how many batches of bananna muffins should beth make if she wants to have a total of 60 muffins?

Explain why the factor 1.5 is broke. into two numbers in the model.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827