The birth weight of childeren were 7 pounds 2 ounces, 6 pounds 10 ounces, 8 pounds 5 ounces, 7 pounds 9 ounces. Luis estiamted the total weight of the babies at birth was 30 pounds. Which best describes his estimate?


A. More than the actual weight because he rounded to the nearest ounce.
B. Less than the actual weight because he rounded to the nearest ounce.
C. Less than the actual wieght because he rounded to the nearest pound
D. More than the actual weight because he rounded to the nearest pound
?

haha nvm!! :)

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

haha alright. :)
i just reposted in case you have not read~ :P

the average weight of a baby at birth is 7 pounds .how many ounces is this

To determine the best answer, we need to understand how rounding was applied in Luis's estimate. In the given information, the birth weights of the children are given in pounds and ounces.

Luis estimated the total weight of the babies at birth to be 30 pounds.

To compare Luis's estimate with the actual weight, we need to convert the weights of the children into a consistent unit. Let's convert all the weights to pounds.

Child 1: 7 pounds 2 ounces = 7 + (2/16) = 7.125 pounds
Child 2: 6 pounds 10 ounces = 6 + (10/16) = 6.625 pounds
Child 3: 8 pounds 5 ounces = 8 + (5/16) = 8.3125 pounds
Child 4: 7 pounds 9 ounces = 7 + (9/16) = 7.5625 pounds

Now, let's add up the weights of all the children:
Total weight = 7.125 + 6.625 + 8.3125 + 7.5625 = 29.625 pounds

Comparing the actual weight (29.625 pounds) with Luis's estimate (30 pounds), we can see that Luis's estimate is slightly more than the actual weight. Therefore, the answer is:

D. More than the actual weight because he rounded to the nearest pound.