Question 213023
Who did you take Math 108 with? 

by weight, the ratio of chlorine to sodium in table salt is 35.46 to 23.00. How much sodium is contained in 50.00kg or salt? Has to be set up as an appropriate proportion and then be solved.
 :
 Let x = amt of sodium in 50 kg
 then
 (50-x) = amt of chlorine in 50 kg
 ;
 A ratio equation:
 = 
cross multiply
 35.46x = 23(50-x)
 35.46x = 1150 - 23x
 35.46x + 23x = 1150
 58.46x = 1150
 x = 
x = 19.67 kg of sodium
 ;
 :
 check:
 Chlorine: 50 - 19.67 = 30.33
 :
 23/35.46 = .6486
 19.67/30.33 = .6485; close enough