Mathematics, 02.10.2020 14:01 carsengilbert

Lucy estimated that it would take 4,000 grains of sand to make a pound. That would mean that each grain of sand weighs 1/4000 of a pound. In decimal form, that weight would be 0.00025 of a pound. Which of the following is the weight of a grain of sand expressed in scientific notation?

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Lucy estimated that it would take 4,000 grains of sand to make a pound. That would mean that each gr...

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