Answer:
The jar contains 132 grams of zinc
Step-by-step explanation:
The ratio of zinc to copper is 4:15, if there were 495 grams of copper, then that means the ratio was multiplied by the quotient of 495 and 15, which is 33. 33 * 4 is 132, so that is the total amount of zinc in the jar.
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3
Simplify:
d is equal to 2.
