Suppose you add x liters of pure water to the 10 L of 25% acid solution. The new solution's volume is x + 10 L. Each L of pure water contributes no acid, while the starting solution contains 2.5 L of acid. So in the new solution, you end up with a concentration of (2.5 L)/(x + 10 L), and you want this concentration to be 10%. So we have
and so you would need to add 15 L of pure water to get the desired concentration of acid.
Answer:
Option 4
Step-by-step explanation:
=> 
Combining like terms
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=> 
Answer:
Direct Variation Use y=kx. Means “y varies directly with x.” k is called the constant of variation. “y varies inversely with x.” k is the constant of variation.
Answer:
i made this poem
Step-by-step explanation:
Send this to anyone that feels left out or you love please.
No Need to be a shadow i see you
No need to be muted i can hear you
No need to cut your not paper
No need to Hang your not a coat
No need to Fall apart because of a guy you'll soon find better
No need to play with your life You are not a toy
No need to not feel loved I love you
No need to feel Numb I'm here
No need to pop pills Your loved
No need to Commit suic.ide There is to much to life
I think all I'm saying is Life is Way more then school, job, rest and repeat There's adventures Happy moments and Horrifying times But we all soon get over these things Your in this world in a life For a reason Life it with a purpose
