SOLUTION: The price of a packet of salt goes up to 9 cents.The old price is four-fifths of the new price.Find the old and new prices. [Hint:let the old price be n cents.So the new price is n

Question 1091400: The price of a packet of salt goes up to 9 cents.The old price is four-fifths of the new price.Find the old and new prices. [Hint:let the old price be n cents.So the new price is n+9 cents
Found 2 solutions by addingup, MathTherapy:
Answer by addingup(3677) (Show Source): You can put this solution on YOUR website!
so you are saying that the old price was 4/5 of the new price, in other words, 4/5n. Correct?
And the new price is 4/5n+9 No?
So isolate the variable on the left side by dividing both sides by 4/5:
4/5*5/4n = 5/4*9
on the left 4/5 and 5/4 cancel each other out and you end up with:
n = 5/4*9 = (5*9)/4 = 45/4 = 11 1/4 or 11.25
Answer by MathTherapy(10557) (Show Source): You can put this solution on YOUR website!

The price of a packet of salt goes up to 9 cents.The old price is four-fifths of the new price.Find the old and new prices. [Hint:let the old price be n cents.So the new price is n+9 cents\

I don't know what on God's earth the other person is thinking, but it's obvious that he/she is on a TOTALLY different PLANET.
Correct answer:
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