Jeff's body contains about 4.78 L of blood that has a density of 1060 kg/m. Approximately 45.0% (by mass) of the blood is cells and the rest is plasma. The density of blood cells is approximately 1125 kg/m', and about 1% of the cells are white blood cells, the rest being red blood cells. The red blood cells are about 7.50 um across (modeled as spheres). Macmillan Learning What is the mass mblood of the blood in Jeff's body? mblood = 5.0668 kg Approximately how many blood cells N (of both types) are in Jeff's blood? N = blood cells TOOLS x10