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Tom can save 2525 dollars in 44 days. Sally can save 4848 dollars in 66 days. How many days will it take Sally to save 100100 dollars more than Tom.

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Q. Tom can save 2525 dollars in 44 days. Sally can save 4848 dollars in 66 days. How many days will it take Sally to save 100100 dollars more than Tom.
  1. Calculate Tom's rate: Calculate Tom's daily saving rate.\newlineTom's rate = 25 dollars4 days=6.25 dollars/day.\frac{25 \text{ dollars}}{4 \text{ days}} = 6.25 \text{ dollars/day}.
  2. Calculate Sally's rate: Calculate Sally's daily saving rate.\newlineSally's rate = 48 dollars6 days=8 dollars/day.\frac{48 \text{ dollars}}{6 \text{ days}} = 8 \text{ dollars/day}.
  3. Set up equation: Set up the equation to find the number of days dd it takes for Sally to save 100100 dollars more than Tom.\newlineSally's total = Sally's rate d* d\newlineTom's total = Tom's rate d* d\newlineSally's total = Tom's total +100+ 100\newline8d=6.25d+1008d = 6.25d + 100
  4. Solve for d: Solve for d.\newline8d6.25d=1008d - 6.25d = 100\newline1.75d=1001.75d = 100\newlined=1001.75d = \frac{100}{1.75}\newlined=57.14d = 57.14 days

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