A jeweler has 12 grams of an 80% gold alloy that she wants to strengthen to 92.5%. Write the rational function, P (x), which is the percent of gold in the alloy by mass where x is the number of grams of gold added.
A) Write the rational function P (x). Use these three expressions to write your rational expression: (12+x), 100x, and 12 (80).
B) Graph the function for the domain 0
C) Use your function an find out how much gold the jeweler must add to create a 92.5% alloy.
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