Question

the triangular region shows the number of possible ounces of platinum, x, and the number of possible ounces of silver, y, a jewelry - maker can mix together to make a certain piece of jewelry. which combination of platinum and silver can the jewelry maker use? 10 oz of platinum and 10 oz of silver 16 oz of platinum and 30 oz of silver 25 oz of platinum and 20 oz of silver 12 oz of platinum and 20 oz of silver

Explanation:

Step1: Identify the points on the graph

The x - axis represents the amount of platinum (x) and the y - axis represents the amount of silver (y). We need to check which of the given points (x,y) lie within the shaded triangular region.

Step2: Check the first option

For the point (10,10), we locate x = 10 and y = 10 on the graph. This point lies within the shaded region.

Step3: Check the second option

For the point (10,30), when we locate x = 10 and y = 30 on the graph, it lies outside the shaded region.

Step4: Check the third option

For the point (25,20), when we locate x = 25 and y = 20 on the graph, it lies outside the shaded region.

Step5: Check the fourth option

For the point (12,20), when we locate x = 12 and y = 20 on the graph, it lies outside the shaded region.

Answer:

10 oz of platinum and 10 oz of silver