Question

I don't under stand #13??

Answer 1

yes because if you divide 50 by 20 you get 2.5 and if you divide 10 by 4 it also equals 2.5  so yes both carpenters are working at the same rate

Answer 2

Everything on this whole sheet is unit rates. Everything ! For the 2 carpenters, find the unit rate for each one (windows / hours), then see if one carpenter is doing more windows per hour than the other one. Don't forget THE RULE I gave you yesterday, when we were doing the detergent and the peanut butter.