Jorge needs two different kinds of concrete. quick drying ans slow drying. the quick dry concrete mix calls for 2 1/2 pounds of dry cement, and the slow drying mix calls for 1 1/4 pounds of dry cement. he needs 5 times more quick-dry cement and 3 times more slow drying concrete then the mixes make. use the properties of real numbers to show how jorge could compute this amount mentally. justify each step.

Question

lgbasallote · Answer

he can convert to improper fractions first then multiply mentally