Archive for March 7, 2010

How long to fill the sink?

Posted: March 7, 2010 in math

Next up with my ninth grade math class: solving rational equations. I’ve been having fun with combined rate problems such as, “How long does it take Timmy and Marsha to mow the grass if it takes Timmy 2 hours on his own and Marsha 1.5 hours on her own?” I, therefore, with great pride present [...]