Question

A scientist mixes x liters of water into a container that has 10 liters of a mixture that is 12% salt and 88% water. The function f(x) = 1.2 / (x+10) represents the percent of the sat in the new mixture. How many liters of water must be added to make 1% salt mixture

Answer 1

Answer:

110 liters of water

Step-by-step explanation:

Let

x ----> liters of water

f(x) ---->  the percent of the sat in the new mixture

we have

$f(x)=\frac{1.2}{x+10}$

For $f(x)=1\%=1/100=0.01$

substitute in the equation

$0.01=\frac{1.2}{x+10}$

solve for x

$x+10=\frac{1.2}{0.01}$

$x+10=120\\x=120-10\\x=110\ L$