SOLUTION: A penny is 1.55 mm thick. About how many pennies can you stack on top of each other in order to get one meter? Round to the nearest hundredth. Thanks so much for any help!

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Question 1027005: A penny is 1.55 mm thick. About how many pennies can you stack on top of each other in order to get one meter? Round to the nearest hundredth.
Thanks so much for any help!

Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
1m = 1000mm
If each penny were smaller, just 1mm, we'd have exactly 1000 pennies.
Here we divide 1000/1.55 and get 645. The penny is thicker than 1mm, so we expected less than 1000. 645 is the answer.