SOLUTION: 2/5 of a number and the 1/4 of the number the sum is 13,what is the number?

Algebra ->  Equations -> SOLUTION: 2/5 of a number and the 1/4 of the number the sum is 13,what is the number?       Log On


   



Question 929848: 2/5 of a number and the 1/4 of the number the sum is 13,what is the number?

Found 2 solutions by Fombitz, stanbon:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
%282%2F5%29N%2B%281%2F4%29N=13
Multiply both sides by 20 or 4%2A5,
8N%2B5N=20%2A13
13N=20%2A13
N=20

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2/5 of a number and the 1/4 of the number the sum is 13,what is the number?
--------
Let the number be "x"::
(2/5)x + (1/4)x = 13
----
Multiply thru by 20 to get:
8x + 5x = 260
13x = 260
x = 20
-----------
Cheers,
Stan H.
---------------