Question: ( 1 5 pts ) A hypothetical A - B alloy of composition 6 0 w t % B - 4 0 w t %

(15 pts) A hypothetical A-B alloy of composition 60wt% B -40wt%A at some temperature is
found to consist of mass fractions of 0.3 for and 0.7 for phases. If the composition of the phase is
80wt% B-20 wt% A, what is the composition of the phase?
(15 pts) A hypothetical A-B alloy of composition 60wt% B -40wt%A

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