SOLUTION: I need help on overall average. This doesn't make any sense to me! Here it is: Joe tossed 4 into the pot. Their average weight was 6 lb. Then he tossed 5 more whose average weight

Question 122782This question is from textbook Algebra 1/2
: I need help on overall average. This doesn't make any sense to me! Here it is: Joe tossed 4 into the pot. Their average weight was 6 lb. Then he tossed 5 more whose average weight was 7 lb. Then he threw in a big one. The overall average weight of all of them is 7 lb. What did the big one weigh? This question is from textbook Algebra 1/2

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I need help on overall average. This doesn't make any sense to me! Here it is: Joe tossed 4 into the pot. Their average weight was 6 lb. Then he tossed 5 more whose average weight was 7 lb. Then he threw in a big one. The overall average weight of all of them is 7 lb. What did the big one weigh?
--------------
4*6 = 24 lb
5*7 = 35 lb
1*x = x
------------
EQUATION:
(24+35+x)/10 = 7
24+35+x = 70
x = 11
=================
Cheers,
Stan H.
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