SOLUTION: Nick had 1/2 lb of walnuts. He ate 3/10 lb of walnuts. What part of a pound of walnuts did he have left? Explain the answer please.

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Nick had 1/2 lb of walnuts. He ate 3/10 lb of walnuts. What part of a pound of walnuts did he have left? Explain the answer please.      Log On


   

Question 266892: Nick had 1/2 lb of walnuts. He ate 3/10 lb of walnuts. What part of a pound of walnuts did
he have left?
Explain the answer please.
Found 2 solutions by rfer, stanbon:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
1/2-3/10
5/10-3/10=2/10=1/5 lb left

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Nick had 1/2 lb of walnuts.
He ate 3/10 lb of walnuts.
What part of a pound of walnuts did he have left?
--------------------
Start: 1/2 lb
Ate: (3/10)(1/2) = 3/20
Amount left: (1/2) - (3/20)
= (10/20) - (3/20)
= 7/20 lb
===============
Cheers,
Stan H.