Riley wants to make 100ml of 25% saline but only has access to 12% and 38% saline mixtures. x= 12% y=38%

Harti asked Oct 13, 2022

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Harti asked Oct 13, 2022

by Harti

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15 votes

Answer:

x = 50

y = 50

Explanation:

$\begin{bmatrix}x+y=100\\ 0.12x+0.38y=25\end{bmatrix}$

.12(100-y) + .38y = 25

x = 50

y = 50

Makita answered Oct 17, 2022

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