10 watermelons have an average weight of 4.3 pounds and 5 pumpkins have an average weight of 3.4 pounds. What is the average wei
ght of the 15 items?
2 answers:
Hello!
Let's find the mean of our two average weights!
4.3+3.4=7.7
7.7/2=3.85
Therefore, the average weight of the 15 items is 3.85 pounds.
I hope this helps!
Since the average is the sum divided by the count, the sum is the average times the count.
So the sum of the weights of the watermelons is 10(4.3)=43 pounds.
The sum of the weights of the pumpkins are 5(3.4)=17 pounds
The sum of the weight of the fruits is 43+17=60 pounds
Dividing by 15 fruits gives an average item weight of 60/15 = 4 pounds
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