Question and answer
Question not found
Ask a question
Not a good answer? Get an answer now. (Free)
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
An alloy weighing 30 lbs. is 11% tin. The alloy was made by mixing a 15% tin alloy and a 9% tin alloy. How many pounds of each alloy were used to make the 11% alloy?
Weegy: 3.3 let x = lbs of 15% alloy 30 - x = lbs of 9% alloy so 0.15x + 0.09(30 - x) = 0.11(30)=3.3 User: An alloy of copper is 10% copper and weighs 25 pounds. A second alloy is 18% copper. How much (to the nearest tenth lb.) of the second alloy must be added to the first alloy to get a 13% mixture. Weegy: ok, so the total weight of the first alloy is 25 pounds and since it is 10% copper, that means that 2.5 pounds is copper. We want to have 13% copper. [ remember that percentage is the following: (part/whole)*100 so to match our problem: (total copper/total weight)*100 Well right now we have 2.5 pounds of cppper and a total weight of 25. We are going to add some of the 2nd alloy, but we dont' know how much, so let's say x. that means we have a total of 25 + x pounds of total weight and : 2.5 + .18(x) total copper. So we have: (2.5+.18x)/(25+x) = 13/100 because it's supposed to equal 13% cross multiply: 250 + 18x = 325 + 13x 5x = 75 x = 15 therefore we must add 15 pounds of alloy 2 ] (More)
Question
Expert Answered
Asked 5/16/2012 9:04:35 AM
0 Answers/Comments
24,991,909 questions answered
Popular Conversations
In December 1997, the United Nations Framework Convention on Climate ...
Weegy: your answer is A. slow the global energy crisis by encouraging nations to find new sources of nonrenewable ...
5/1/2016 12:33:13 PM| 2 Answers
A synonym is a word that has the opposite meaning as itself.
Weegy: A synonym is a word that has the opposite meaning as itself. FALSE. User: That is incorrect. Please try ...
5/1/2016 2:43:48 AM| 1 Answers
Weegy Stuff
S
Points 85 [Total 85] Ratings 4 Comments 45 Invitations 0 Offline
S
Points 64 [Total 64] Ratings 1 Comments 44 Invitations 1 Offline
S
1
L
L
P
R
P
L
P
Points 43 [Total 12295] Ratings 0 Comments 43 Invitations 0 Online
S
Points 18 [Total 87] Ratings 0 Comments 18 Invitations 0 Offline
S
Points 5 [Total 150] Ratings 0 Comments 5 Invitations 0 Offline
S
Points 1 [Total 1] Ratings 0 Comments 1 Invitations 0 Offline
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
S
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
S
Points 0 [Total 0] Ratings 0 Comments 0 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.