Translate to a system of two equations, then solve.During a specific year, the percentage of high school sophomores that spent 13 hours or more each week preparing for class was 13% more than those that spent less than 13 hours preparing for class. If the percentage of both groups totals 100%, what percentage of high school sophomores spent 13 hours or more each week preparing for class?
A. 42.5% spent 13 hr or more, 57.5% spent less than 13 hr
B. 57.5% spent 13 hr or more, 42.5% spent less than 13 hr
C. 43.5% spent 13 hr or more, 56.5% spent less than 13 hr
D. 56.5% spent 13 hr or more, 43.5% spent less than 13 hr
Answer: D
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