In a certain? chemical, the ratio of zinc to copper is 4 to 17. A jar of the chemical contains 612 grams of copper. How many grams of zinc does it? contain?

The answer is 144 grams of zinc

Step-by-step explanation:

proportion zinc to copper = 4/17

4/17 = z / 612

multiply the extremes

17. z = 4. 612

17. z = 2,448

z = 2,448 / 17

z = 144

The answer is 144 grams of zinc

Always check your answer

4 / 17 = 144/612 = 0.235