this is because if you were to cross multiply this equation it would be 5/1 (representing the amout of bread per hour) = 200/x (representing the amout of bread needing to be baked over x hours)
5/1 = 200/x
next you would divide 200 by 5 to see what number is needed to multiply the bottom number to get number of hours
that brings us to 40 and so youll multiply the denominator (1) by 40 and youll get the answer to x which is 40 hours
<em>please mark as brainliest :)</em> hope i helped