SOLUTION: Bully has a pail that contains 40 nails and weighs 175 grams. The same pail with 20 nails weighs 95 grams. How much does Bully's pail weigh with no nails in it? How much does each

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Question 940752: Bully has a pail that contains 40 nails and weighs 175 grams. The same pail with 20 nails weighs 95 grams. How much does Bully's pail weigh with no nails in it? How much does each nail weigh?
Found 2 solutions by lwsshak3, macston:
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Bully has a pail that contains 40 nails and weighs 175 grams. The same pail with 20 nails weighs 95 grams. How much does Bully's pail weigh with no nails in it? How much does each nail weigh?
***
let x=weight of each nail
let y=weight of pail
..
40x+y=175
20x+y=95
subtract:
20x=80
x=4
..
40x+y=175
40x+2y=190
subtract:
y=15
weight of each nail=4 grams
weight of pail=15 grams

Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
Pail with 40=P49=175g; Pail with 20=P20=95g
P40-P20=20 nails=N20=175g-95g=80 g
P20-N20=Pail DISABLED_event_only= 95g-80g=15g ANSWER 1 Weight of Pail DISABLED_event_only= 15 grams
N1=weight of one nail=N20/20=80g/20=4g ANSWER 2 Weight of 1 nail=4g
CHECK:
Pail and 40 nails weighs 175g
Pail weight + 40(weight of 1 nail)= 175 g
15 g+40(4g)=175g
15g+160g=175g
175g=175g