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Spiderman has $350 in his account and his earnings $25 per day. Batman has $200 in his account and earns $35 per day. After how many days, d, will Spiderman have more than Batman.

 Sep 5, 2020
 #1
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350+25x is less then 200+35x

150 is less then 10

15 is less then x

So x is 16 days, our final solution.

coolcoolcool

 Sep 5, 2020

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