Homework Help: math correct or no?

Posted by Aly on Wednesday, October 27, 2010 at 3:04am.

The birth weights of 4 childeren were 7 pounds 2 ounces, 6 pounds 10 ounces, 8 pounds 5 ounces, 7 pounds 9 ounces. Luis estimated the totall wieight of te babies at birth was 30 pounds. Which best describes his estiamte?

A. More than the actual weight because he round to the nearest ounce.
B. Less than the actual weight because he rounded to the nearest ounce.
C. Less than the actual weight becsuse he rounded to the nearest pound.
D. More than the actual weight because he rounded to the nearest pound.
Is it C?

math correct or no? - jai, Wednesday, October 27, 2010 at 3:52am
summing pounds: 7+6+8+7 = 28 pounds
summing ounces: 2+10+5+9 = 26 ounces
since 16 ounces = 1 pound,
26 ounces = 26/16 = 1.625 pounds
total wight = 28+1.625 = 29.625 pounds,,
therefore, 30 is greater than 29.625,
--> i think it's letter A

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