Question #546fd
2 Answers
32 Blue marbles and 8 White marbles...
Explanation:
The first equation is
The equation changes to
The initial count of marbles was 40
Explanation:
Let the original count of blue marbles be
Let the original count of white marbles be
Let the total initial count be
Given initial condition
It is stated that after a change the counts of blue and white become the same
blue changes by
white changes by
So after the change we have:
However; the value of blue is such that
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Using equation(2) substitute for b in equation(1) giving the count condition:
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Using equation(2)
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