A Biologist mixes a 15% salt solution with a 35% salt solution to create 20 mL of a 22% salt solution.Which equation can you use to find the amount of 15% salt solution that is used? Plz show work.
~~~ A) 0.15x=0.35(20-x)=0.22(20)
B) 0.35x+0.35+0.15(20-x)=0.15(20)
C) 0.22(0.35x-0.15x)=0.22(20)
D) 20(0.35x-0.15)=0.22(0.35-0.15)

Question

A Biologist mixes a 15% salt solution with a 35% salt solution to create 20 mL of a 22% salt solution.Which equation can you use to find the amount of 15% salt solution that is used? Plz show work.
~~~ A) 0.15x=0.35(20-x)=0.22(20)
B) 0.35x+0.35+0.15(20-x)=0.15(20)
C) 0.22(0.35x-0.15x)=0.22(20)
D) 20(0.35x-0.15)=0.22(0.35-0.15)

anonymous · Answer

oh my lawd. really? this is freaking hard.
ok lets just do it then
so we got a biologist
then what?
he mixes a solution yadayadayada with another solution and create 20 ml of 22 percent salt

now watcha wanna do is idk.