Bronze is an alloy or mixture of the metals copper and tin T

Bronze is an alloy or mixture of the metals copper and tin. The properties of bronze depends on the percentage of copper in the mix. A chemist decides to study the properties of a given alloy of bronze as the proportion of copper is varied. She starts with 10 kg of bronze that contains 6 kg of copper and 4 kg of tin and either adds or removes copper. Let f(x) be the percentage of copper in the mix if x kg of copper are added (x>0) or removed (x

Solution

she starts with 10 kg bronze

initial copper amount = 6kg

initial tin amount = 4 kg

so f(x) would be expressed as

f(x) = {(x+6) / (x+10)} *100

domain is all values of x except x = 10

range is all values of y except y=100