Question

A biologist has a 36% solution and a 14% solution of the same plant nutrient. How many cubic centimeters (cc) of each solution should be mixed to obtain a 25 cc of a 25% solution? I been looking at this for 2 hours please help

Answer 1

amount of 36% solution -- x cc
amount of 14% solution -- (25-x) cc

.36x +.14(25-x) = .25(25)
times 100 , (don't like decimals like to avoid them)
36x + 14(25-x) = 25(25)
36x - 14x = 625 - 350
22x = 275
x = 12.5 cc

so it looks like 12.5 cc of each

Answer 2

Thank you so much Reiny

Answer 3

The answer given above is wrong.
The formula used is incorrect.