<span>Proof by contradiction is simply a specific way to form indirect proof that will show the validity of someone's argument or position. It begins by someone assuming the opposite of what they propose is true then goes on to prove that the improper assumption simply leads to a contradiction.</span>
So first I hope this helps! But from what I’ve learned in school is that a unit rate pretty much just mean *1... so in words the answers would be 1/6 and hour for every 2/23 miles
