Rod, I need more help. I will give the problem to you.

A doctor is studying heights of newborn babies. The doctor uses 20 inches as a reference point. Babies in the study receive a score to show how close they are to 20 inches.

A baby that is 21 inches long receives a score of +1.

 


A baby that is 18 inches long receives a score of .
 
I said -1, but I got it wrong. What did I do wrong?
in Other Math Topics by Level 10 User (57.4k points)

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2 Answers

Best answer
21-20=1, but 18-20=-2, which is what your score should have been.
by Top Rated User (1.1m points)
selected by
the answer is -2
by

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