Subtract 50 from both sides:
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A farmer wanted to estimate how many moles were living on his property, so he marked 39 of them with tags. A few weeks later, th
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it went from 8 to 6.5, namely 8 - 6.5 = 1.5.
if we take the 8 to be the 100%, what is 1.5 off of it in percentage?
well, we can round that up to 18.8%, however since it's a subtraction from the board, we can say is -18.8%, a negative percent, because is a percent that was taken out of it.