Three parts of nitrogen and five parts of phosphorus were mixed as a fertilizer for farmer ted’s pasture. which fraction represents the ratio of nitrogen in farmer ted's fertilizer? a) 3/5 b) 3/8 c) 5/3 d) 8/3

Three parts of nitrogen plus five parts of phosphorous gives you a total of 8 parts (3+5=8).  Nitrogen makes up only three of those eight parts, or 3/8. The correct answer is B) 3/8.

a) carbon, hydrogen

b) carbon, hydrogen, oxygen, nitrogen

c) carbon, hydrogen, oxygen, nitrogen, phosphorus

d) sugar

e) amino acid

f) nucleotide