Marcie fills a graduated cylinder with 15.OmL of water. She finds the mass of a marble to be 2.21g, then drops the marble into the graduated cylinder. If the meniscus on the cylinder is now at 16.3mL, what is the density of the marble?

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.

8.4 10.4 8.9 10.9 have a good day