HELP PLEASE
One solution is 20% acid and another is 12% acid. How many cubic centimeters of each solution should be mixed to obtain 100 cubic centimeters of a solution that is 16% acid? Show all steps. @timo86m @amistre64

Question

HELP PLEASE
One solution is 20% acid and another is 12% acid. How many cubic centimeters of each solution should be mixed to obtain 100 cubic centimeters of a solution that is 16% acid? Show all steps.   @timo86m @amistre64

amistre64 · Answer

define 2 equations ... once for volume and the other for percentages

anonymous · Answer

so you mean..x+y=100
                    20x +12y=16

amistre64 · Answer

x + y = 100

,20x + .12y = .16(100)

amistre64 · Answer

close

amistre64 · Answer

1600 is better

amistre64 · Answer

if need be:

let x=50+n
let y=50 -n

amistre64 · Answer

lol, n=0

anonymous · Answer

so i should make my second equation 20x + 12y= 1600

amistre64 · Answer

yes

anonymous · Answer

oh ok.let me work it out and tell u my answer please

amistre64 · Answer

you want .16 of 100;  and if you are going to pull out the decimals   then thats 16(100)

anonymous · Answer

ok.let me work it out and tell u what i got

anonymous · Answer

i had both equations to be 50..@amistre64 , if its right how do i conclude ??

anonymous · Answer

@amistre64

amistre64 · Answer

x=50 and y=50 thats is

amistre64 · Answer

*thats it

anonymous · Answer

oh ok

anonymous · Answer

thanks very much .