Describe and correct any error a student may have made when solving the equation 0.15(y0.2)20.5(1y).
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Part 1
The student first made an error when writing
100 left parenthesis 0.15 y minus 0.3 right parenthesis equals 100 left parenthesis 1.5 plus 0.5 y right parenthesis .
The expression on the
right side
right side
left side
of that equation should be
RootIndex 1.5 StartRoot 35 EndRoot. The correct answer is y
2.
(Simplify your answers.)