SOLUTION: The average weight of Bob, John and Danny is 70 lbs. If Bob and Danny weigh 145 lbs total, how much does John weigh?
Help show work and expalin plz
Algebra.Com
Question 910496: The average weight of Bob, John and Danny is 70 lbs. If Bob and Danny weigh 145 lbs total, how much does John weigh?
Help show work and expalin plz
Answer by JoelSchwartz(130) (Show Source): You can put this solution on YOUR website!
(b+j+d)/3=70
The sum of bob, john and Danny is equal to two hundred and ten. Two hundred and ten divided by three is equal to seventy. The reason i divided by three is a average is the sum of all the numbers divided by the number of numbers.
b+d=145
(145+j)/3=70
145/3+j/3=70
j=65
210/3=70
RELATED QUESTIONS
If the average weight of three boxes is 3.1 lbs. and two boxes weigh 3.6 lbs. each, what... (answered by macston)
a truck and its load weigh 22800 lbs. If the load weighs 12,400 lbs more then the truck, (answered by galixy)
if a pig weighs 20 lbs heavier then a 1/3 of its weight how much does the pig... (answered by gonzo)
Susan has 92 packages on her truck.
Some of the packages weigh 32 lbs each,
and the... (answered by Fombitz)
Bonnie has three types of weights. Barbells all have the same weight. Doughnuts all have... (answered by solver91311,Theo)
A dog is 3/4 its weight plus 3/4 lbs. How many lbs does the dog... (answered by KatieMose)
The weight of two trucks are in the ratio of 5:9. If together they weigh 5600 lbs, how... (answered by macston)
Arthur weighs 34 lbs more than twice Lily's weight. Their combined weight is 18 lbs more... (answered by ewatrrr)
Bob's weight is double that of joe and their combined weight is 225 lbs. Bob... (answered by stanbon)