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Kelsey withdraws $25 per week from her bank account. Each week, Kris deposits $15 of his allowance and $20 earned from dog walking into his account. After how many weeks will they have the same amount of money in the bank? Please show the step-by-step calculation to determine the number of weeks required for them to have the same amount of money.

User Hsuk
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Final answer:

Kelsey and Kris will have the same amount of money in the bank after 0 weeks.

Step-by-step explanation:

To find out after how many weeks Kelsey and Kris will have the same amount of money in the bank, we need to set up an equation.

  • Let's assume the number of weeks required is 'x'.
  • Kelsey withdraws $25 per week, so the amount of money Kelsey will have after 'x' weeks is $25 * 'x'.
  • Kris deposits $15 of his allowance and $20 earned from dog walking into his account each week, so the amount of money Kris will have after 'x' weeks is ($15 + $20) * 'x'.

To find the number of weeks where they have the same amount of money, we can set up the equation:

$25x = ($15 + $20)x

Simplifying the equation:

$25x = $35x

Dividing both sides of the equation by $10:

x = 0

Thus, they will have the same amount of money in the bank after 0 weeks.

User Kevguy
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