alyssa mixed 8mL of a salt solution with 9mL of a 50% salt solution to make a 42% of salt solution find the %of salt concentration of the first solution
+37084 Amount of salt in 8ml = (x%)(8ml) Where 'x' is the % solution of the 8cc
amount of salt in 50% solution = .50 (9ml)
Amount of salt when finished in 42% solution = .42 (8+9ml)
Total salt to strat = total salt at end
8x + .5(9) = .42 (8+9) Solve for 'x'
8x + 4.5 = 7.14
8x= 2.64
x = 2.64/8 = 33% salt solution
