An average 10 yr boy weighs 86 1/2 pounds and has muscles that weigh 34 1/5 pounds. An average 10 yr old girl weigh 82 1/3 pounds and has muscles that weigh 31 1/4 pounds. How much do an average 10 yr old boy and girl weigh together ? With answer can you tell me how you got it.

Thanks

It seems that the muscle weight is unnecessary information. In order to find average you add the two weights and divide by how many weights you added, in this case 2.

So 86.5 + 82.3333333 = 168.833333 / 2 = 84.417 pounds

the question was: how much do they weigh together?

86 1/2 + 82 1/3 = 168 5/6

To find out how much an average 10-year-old boy and girl weigh together, we need to add their weights.

Let's start with the average weight of a 10-year-old boy, which is 86 1/2 pounds. To add fractions, we need to have a common denominator.

The fractions here are 1/2 and 0, so we need to convert 0 to a fraction with the same denominator.

0/1 = 0/2

Now, we can add the fractions:

86 1/2 + 0/2 = 86 1/2

So, the weight of an average 10-year-old boy is 86 1/2 pounds.

Next, let's determine the average weight of a 10-year-old girl, which is 82 1/3 pounds. Again, we need to add fractions, so let's convert 1/3 to have the same denominator.

1/3 = 2/6

Now we can add the fractions:

82 1/3 + 0/6 = 82 2/6

Simplifying the fraction, we get:

82 1/3 = 82 1/2

So, the weight of an average 10-year-old girl is 82 1/2 pounds.

Finally, we can add the weight of the boy and girl together:

86 1/2 + 82 1/2 = 168

Therefore, an average 10-year-old boy and girl weigh together 168 pounds.