How much pure acid do you mix with 2L of 40% acid to get 70% acid
2 answers:
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HERE IS UR ANSWER
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(x-(-3)) = -1(y-5)
(x+3)= -y+5
x+y+3-5=0
x+y-2=0
That would be week 2 and 4 (B). They are both at 12 students attending
Hope this helped!
