Homework Help: math

Posted by Anonymous on Friday, September 24, 2010 at 9:31am.

Donovan spent some money on friday. He spent thrice as much money on saturday than on friday. He spent $20 on sunday. If he spent a total of $125 in the 3 days, how much did he spend on saturday?

math - PsyDAG, Friday, September 24, 2010 at 12:22pm
x = money spent on Friday, thus 3x = money spent on Saturday.

x + 3x + 20 = 125

Solve for x and then 3x.

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