How to solve for % mixture

mixture is 25% T. How many grams of T must be added to 12 grams of mixture to increase the T content to 40%.  How to set up.
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1 Answer

How to solve for % mixture
mixture is 25% T. How many grams of T must be added to 12 grams of mixture to increase the T content to 40%.  How to set up.

0.25(12g) + x = 0.4(12g + x)
3g + x = 4.8g + 0.4x
x - 0.4x = 4.8g - 3g
0.6x = 1.8g
x = 3g of T

 

by Level 11 User (78.4k points)

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