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Together a bat and a ball costs $1.10
If the bat costs $1.00 more than the ball, What are the costs for each bat and ball?
At first glance or impulse, the simple subtraction 10 minus $1.10.
The simple (incorrect) answer of 1.00 might indicate the cost of the ball is 10 cents.
But, wait, slow down a bit.
If the bat is one dollar more than the .10 cent ball, this means the bat alone would cost $1.10.
This is incorrect because $1.10 plus .10 exceeds the total, combined expenditure for bat and ball.
Correct solution is the ball costs
Since the bat costs one dollar MORE than the ball, the cost of the ball is .05, and at one dollar more, the bat is $1.05.