SOLUTION: Find two numbers whose sum is 65 and such that one is 4 times as large as the other. (We will call the two numbers and .)

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Find two numbers whose sum is 65 and such that one is 4 times as large as the other. (We will call the two numbers and .)       Log On


   

Question 177449: Find two numbers whose sum is 65 and such that one is 4 times as large as the other.
(We will call the two numbers and .)

Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
ok, lets call the 2 numbers a and b
:
Find two numbers whose sum is 65 and such that one is 4 times as large as the other.
:
a+b=65.....eq 1
a=4b.......eq 2
:
take the value of a, which is 4b, from eq 2 and plug it into eq 1
:
4b+b=65
:
5b=65
:
highlight%28b=13%29
:
highlight%28a=4%2813%29=52%29