Ask
your own question, for FREE!
Mathematics
54 Online
OpenStudy (anonymous):
Anne and Nancy use a metal alloy that is 20% copper to make jewelry. How many ounces of a 14% alloy must be mixed with a 23% alloy to form 69 ounces of the desired alloy?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (kropot72):
The amount of copper required in the final 69 ounces of alloy = 69 * (20/100) = 13.8 ounces. Let the required quantity of 14% alloy = a Let the required quantity of 23% alloy = b a + b = 69 a = 69 - b 0.14a + 0.23b = 13.8 0.14(69 - b) + 0.23b = 13.8 9.66 - 0.14b + 0.23b = 13.8 0.09b = 4.4 Can you find b now?
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
steak:
life is like a dark tunnel you cant always see the light at the end of the tunnel
5 minutes ago
1 Reply
1 Medal
D14610:
The graph below shows a company's profit f(x), in dollars, depending on the price of pencils x, in dollars, sold by the company: Part A: What do the x-inter
8 minutes ago
1 Reply
0 Medals
steak:
if anyone tells you not to be yourself being yourself is what made you different
9 minutes ago
4 Replies
0 Medals
KyledaGreat:
Joy (takes Over Me) You can bet you're sweeter than ever And your love is making it better I can feel it in my bones Oooh each time we're alone Cause I live
16 minutes ago
4 Replies
2 Medals
itsmeeee:
Do you know the kind of pain you get after the first person you feel breaks up with you? Well, I thought I'd never feel that pain again, because I told myse
22 minutes ago
4 Replies
1 Medal
vanessad123:
Whats your "to go" song when your in your emotions? And how das that specific son
15 minutes ago
47 Replies
7 Medals