Question

A jeweler works with two kinds of metals, the first contains

72% silver and the second contains 87% silver.
If he wants to end up with a mixture of 50 grams that is
84% silver,
How many grams of the 72% silver metal should he use?

Answer 1

The TI-84 Plus Silver Edition is powered by four AAA alkaline batteries (not included) , with an automatic shutoff to save energy.

Explanation: