**A supplier sells 2 1/4 pounds of mulch for every 1 1/3 pounds of gravel. The supplier sells 172 pounds of mulch and gravel combined. How many pounds of each item does the supplier sell? (Ratios and Rates)**

**Answer:**

Let x be the amount of mulch sold and y be the amount of gravel sold. Then if the supplier sells 2 1/4 pounds of mulch for every 1 1/3 pounds of gravel:

[

\frac{x}{y}=\frac{2\frac14}{1\frac13}

]

and if the combined sales are 172, then

[

x + y = 172

]

This is a system of equations that you can solve by your favorite strategy (substitution, graphing, addingâ€¦)