Irina predicted that she would sell 75 books, but she actually sold 95 books. Which expression would find the percent error? Use
2 answers:
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"<span>The weight of a person on or above the surface of the earth varies inversely as the square of the distance the person is from the center of the earth"
namely "w" varies inversely to </span>
then
"<span>A particular person weighs 192 pounds on the surface of the earth and the radius of the earth is 3900 miles. "
</span>namely when w = 192, d = 3900
so
ANSWER
EXPLANATION
The given expression is;
We factor to obtain;
Multiply by the reciprocal of the second fraction
Cancel out common factors to get,