Answer:
20 L of 22% solution and 8 L of 36% solution
Step-by-step explanation:
Volume of 22% solution + volume of 36% solution = volume of 26% solution
x + y = 28
Acid in 22% solution + acid in 36% solution = acid in 26% solution
0.22x + 0.36y = 0.26(28)
0.22x + 0.36y = 7.28
Solve the system of equations using either elimination or substitution. I'll use substitution:
x = 28 − y
0.22(28 − y) + 0.36y = 7.28
6.16 − 0.22y + 0.36y = 7.28
0.14y = 1.12
y = 8
x = 28 − y
x = 20
The chemist should use 20 L of 22% solution and 8 L of 36% solution.
Answer:
3.25 cups
Step-by-step explanation:
i think. have a good day!
lol i got it wrong. sry.
Okay so in this question it says to solve f(7). This means to plug in the 7 every where you see an x, so that it looks like this: 
Then you'll solve it like a normal equation.
Hope this helped! Let me know if there is anything I need to clarify or explain more in depth!
Answer:
√3
Step-by-step explanation:
This is a 30-60-90 triangle, in which the side measurements will follow the rule of 1, √3 , 2.
Remember, the smallest side is the one opposite the 30° angle (1), while the hypotenuse is the one opposite the 90° (2).
In this case, the given smallest side measurement is 1. This means that q is 1 x √3 = √3.
√3 is your answer.
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