Homework Help: algebra

Posted by dean on Thursday, August 27, 2009 at 1:54pm.

suppose that D+E=A, that N/A=.25 and that D/A=0.15. Solve for N/E.

algebra - Reiny, Thursday, August 27, 2009 at 3:12pm
this one takes some "playing around"
I did this

D+E=A, divide each term by A
D/A + E/A = A/A
0.15 + E/A = 1
E/A = .85 = 85/100 = 17/20
Then A/E = 20/17

But N/E = (N/A)(A/E) = (25/100)(20/17)
= 5/17 or appr. .294

Related Questions

algebra - would you please check my work and make changes for errors? thanks ann...
Algebra 1 - Solve each equation. t(t - 12)+t(t+2)+25=2t(t - 5) - 15
Algebra - To solve the system of equations, which expression could be ...
Math - How do you solve this? 8-2(t-1)=t+7 The answer is suppose to be 1 u-8-3u=...
Chemistry - Captain Kirk, of the Starship Enterprise, has been told by his ...
Algebra with Applications - Suppose an insurance agent offers you a policy that ...
statistics - A machine used for packaging seedless golden raisins is set so that...
Algebra - I cannot solve the problem please help me. I'm suppose to set the ...
math,algebra,help - can someone explain to me why (3)/(5) and (27)/(45) are ...
ALGERA - Suppose A-D=E, thAt N= 15,200, E/A= .40 and N/E=.25. compute D/A

For Further Reading

First Name:
School Subject:
Answer: