A4% peroxide solution is mixed with a 10% peroxide solution, resulting in 100 l of an 8% solution. the table shows the amount of each solution used in the mixture.

33 1/3 L of the 4% solution and 66 2/3 L of the 10% solution.

Step-by-step explanation:

Let x represent the amount of 4% solution and y represent the amount of 10% solution.  Together they make 100 L of solution; this gives us the equation

x + y = 100

x liters of the 4% solution gives us the expression 0.04x.

y liters of the 10% solution gives us the expression 0.10y.

100L of the 8% solution gives us 0.08(100) = 8.

Together this gives us the equation

0.04x+0.10y = 8

This gives us the system of equations

To solve this, we will use elimination.  We must make the coefficients of one variable the same; we will make the x coefficients the same by multiplying the first equation by 0.04:

Now we eliminate x by subtracting the second equation from the first one:

Divide both sides by -0.06:

-0.06y/-0.06 = -4/-0.06

y = 66 2/3

Substitute this into the first equation:

x + 66 2/3 = 100

Subtract 66 2/3 from each side:

x + 66 2/3 - 66 2/3 = 100 - 66 2/3

x = 33 1/3

There are 33 1/3 liters of the 4% solution and 66 2/3 liters of the 10% solution.

is it 35

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b