He spends 5 minutes ironing his shirt and 3 minutes ironing his pants so that's 5+3 = <<5+3=8>>8 minutes

He does this every day for 5 days so that's 5*8 = <<5*8=40>>40 minutes

After 4 weeks, Hayden has spent 4*40 = <<4*40=160>>160 minutes ironing his clothes

# Answer

160
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Before work, Hayden spends 5 minutes ironing his button-up shirt and 3 minutes ironing his pants.  He does this 5 days a week.  How many minutes does he iron over 4 weeks?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
160
Before work, Hayden spends 5 minutes ironing his button-up shirt and 3 minutes ironing his pants.  He does this 5 days a week.  How many minutes does he iron over 4 weeks?
train