Mathematics, 23.02.2021 23:10 meganjackson155
Scientists often use a pan balance to measure mass when doing experiments. The equation 5 +4 -2 = 9 - 2 represents when a scientist takes 2 units of mass from
each side of a pan balance. Construct an argument to explain how the scientist knows that the pans are still in balance.
amount of mass was
so the mass in the pans
and the pans stay in balance.
Answers: 1
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Scientists often use a pan balance to measure mass when doing experiments. The equation 5 +4 -2 = 9...
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