For

and

to be inversely proportional, there must be some constant

such that

Given that

when

, it follows that

Then when

, we have
2x+3=7
2x+3-3=7-3
Whenever moving a number to the other side you have to change the sign .
2x= 4
x=2
The answer is B
15 L of pure water must be mixed with 10 L of a 25% acid solution to reduce it to a 10% acid solution
Answer:
°
Step-by-step explanation:



subtract
form both sides

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