Question

2. A chemist wishes to make 3 liters of a 7% acid solution by mixing a 9% acid solution and a 4% acid solution. How many liters of each solution should the chemist use? Write your answer as a complete sentence.

Be sure to:
Define your variable and expressions for the quantities.
Write an equation that models the problem.
Solve the equation.
State the answer in a complete sentence.
Answer:

Answer 1

First let's make a table...(see attached file)
2. Solve for one of the variables - let's do y, so we'll solve for y (see file). Use the equation (from the table)
\[x=(3−y)\]
and substitute for x in the table.
3. Add all of the equations together and solve for y. This will obtain the liter amount of your 9% solution.
4. Subtract 1.8L from 3 to get the amount of the 4% acid solution, which will be 1.2L.
5. The chemist will use 1.8 liters of 9% acid solution and 1.2 liters of 4% acid solution to obtain 3 liters of a 7% acid solution.

Answer 2

@Shelbygt520

Answer 3

hey can you help me with this too

Answer 4

Yes @DJB8? and yeah

Answer 5

thanks, Define your variable and expressions for the quantities.

Answer 6

is it y=unknown?

Answer 7

If you look at the table it shows you the significance of the variables

Answer 8

okay

Answer 9

x= 4% y=9%

Answer 10

@shelbygt520

Answer 11

sorry it's taking so long I'm in the middle of my own homework myself lol and yes

Answer 12

ok thanks and i understand #itsastruggle lol

Answer 13

Haha yep but its worth it in the end #enjoythestruggle

Answer 14

lol yep ^^^ #truth

Answer 15

well If you need any more help just holler

Answer 16

ok ty :)

Answer 17

Write an equation that models the problem.

Answer 18

then the last part then I'm done i dont want to get in the way of you and your homework

Answer 19

Alright lol, an equation that models the problem would be that equation I have up top \[x=(3-y)\]

Answer 20

Solve the equation.

Answer 21

hold on lemme get someone here real quick

Answer 22

okay

Answer 23

@bibby @undeadknight26

Answer 24

I'm so spaced out right now these guys will probably help you a lot more

Answer 25

ok

Answer 26

The person logged off but oh well XD

Define your variable and expressions for the quantities.
Variable: Something we dont know...such as how much of each we should put.
Write an equation that models the problem.
Equation:
Not sure if you can make multiple equations which would be easier to me o.o
Solve the equation.
Ya know ^
State the answer in a complete sentence.

Answer 27

when you solve it can you go step by step

Answer 28

Im lost honestly...@abb0t @SithsAndGiggles @Hero Help please?