1. After 4 weeks, Han will have $100 - ($15 * 4) = $40 left in his account.
Lin will have $25 + ($10 * 4) = $25 + $40 = $65 in her account.
Therefore, Lin has more money in her account after 4 weeks.
2. Let's denote the number of weeks as x. After x weeks, Han will have $100 - ($15 * x) in his account.
Lin will have $25 + ($10 * x) in her account.
To find the number of weeks when they have the same amount of money, we can set up an equation:
100 - 15x = 25 + 10x
Combining like terms, we get:
5x = 75
Dividing both sides by 5, we find that x = 15.
Therefore, after 15 weeks, Han and Lin will have the same amount of money in their lunch accounts.
Lin and han's families provide money for their school lunch accounts
Han starts with $100 in his account. He spends $15 each week on lunches.
Lin starts with $25 in her account and does not spend any of it. Her family adds $10 each week to her account.
1.At the end of 4 weeks, who has more money in their account? Explain how you know.
2.After how many weeks will Han and Lin have the same amount of money in their lunch accounts?
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