Alto earned $225 while Sheryl earned $250 over the summer.
Let x represent the amount of money earned by Alto and y represent the amount of money earned by Sheryl
Together they earned a total of $475. Hence:
x + y = 475 (1)
Sheryl earned $25 more than Alto. Hence:
y = x + 25
-x + y = 25 (2)
Solving equations 1 and 2 simultaneously gives:
x = 225, y = 250
Therefore Alto earned $225 while Sheryl earned $250 over the summer.
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