<human>:  Ivan has a piggy bank that can hold 100 pennies and 50 dimes. How much, in dollars, does Ivan have if he has filled his two piggy banks with those coins?
<bot>: How many cents does Ivan have from the 50 dimes? ** Ivan has 50 x 10 = <<50*10=500>>500 cents from the 50 dimes in his one piggy bank.
How many cents does Ivan have in one of his piggy banks? ** So, he has a total of 100 + 500 = <<100+500=600>>600 cents in one of his piggy banks.
How much money does Ivan have from one of his piggy banks? ** Since 100 cents is equal to 1 dollar, then Ivan has 600/100 = 6 dollars from one of his piggy banks.
How much money does Ivan have from his two piggy banks? ** Therefore, Ivan has a total of $6 x 2 piggy banks = $<<6*2=12>>12 from his two piggy banks.
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