A bag of potatoes weighing 5 pounds and 12 ounces cost $2.07. What is the cost of 1 pound of potatoes?
2 Answers
One pound of potatoes cost
Explanation:
As one pound is equal to
Now
Hence, one pond of potatoes cost
=
=
=
Hence, one pound of potatoes cost
Another approach. Really it is the same thing in disguise!
Explanation:
To start with this be the same as the other solution. Will very slightly change in the middle. Then end up the same again.
The important thing to remember is that
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Given weight
This is the same as
The cost is
But we need the cost for
Let the unknown cost be
But