Each plastic chair costs $55/5 = $<<55/5=11>>11.

Two chairs cost $11 x 2 = $<<11*2=22>>22.

A portable table costs $11 x 3 = $<<11*3=33>>33.

Manny has to pay a total of $22 + $33 = $<<22+33=55>>55.

Thus, Manny will be left with $100 - $55 = $<<100-55=45>>45.

# Answer

45
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Three plastic chairs cost as much as a portable table. Five plastic chairs cost $55. If Manny wants to buy one portable table and two chairs, how much will be left in his $100?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
45
Three plastic chairs cost as much as a portable table. Five plastic chairs cost $55. If Manny wants to buy one portable table and two chairs, how much will be left in his $100?
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