PDA

View Full Version : can someone tell me if this is right plz?


trae160
Nov30-04, 08:56 PM
can someone tell me if this is right plz?

--------------------------------------------------------------------------------

it says "solve the equation by first clearing the fractions." the equation is "2/5=5/8n-4" i got for my answer "1 1/25" is this correct?

trae160
Nov30-04, 09:04 PM
cmon im sure one of yall collage people can answer this is only a 7th grade problem.

mathlete
Nov30-04, 09:18 PM
The answer is 25/176, unless you mean 5/(8n-4), in which case it is 33/16

Zurtex
Nov30-04, 09:46 PM
That depends what you mean, either:

\frac{2}{5}=\frac{5}{8n-4}

2(8n-4) = 25

Or:

\frac{2}{5}=\frac{5}{8n} - 4

2 = \frac{25}{8n} - 20

22 = \frac{25}{8n}

176n=25

trae160
Dec1-04, 03:53 PM
ty everyone =)

Zurtex
Dec1-04, 06:23 PM
I just thought you might also mean:

\frac{2}{5}=\frac{5}{8}n-4

\frac{16}{5}=5n-32

\frac{176}{5}=5n