Number of results: 4
about 99% of the mass of the human body is made up of just six elements. oxygen:65% carbon18% hydrogen:10% calcium:1.5% phosphorus:1.0% Find the mass of each element in a human body iwth mass 60kg. could you please explain to me how to do this? your help is appreciated.:)
Monday, February 8, 2010 at 9:50pm by rebecca
60 kg. * 0.99 =59.4 kg 0.65 * 59.4 = 38.61 kg 0.18 * 59.4 = 10.69 kg I'm sure you can finish the rest of these calculations.
Monday, February 8, 2010 at 9:50pm by Ms. Sue
how many sides does a polygon have if the sum of its interior angles are a) 1080 b) 1260 How could i figure this out without being able to know how many sides the polygon has?
Sunday, May 23, 2010 at 2:08pm by Rebecca
Divide them by 180 to get the number of sides.
Sunday, May 23, 2010 at 2:08pm by Jen