SOLUTION: one number is 5 times as large as another number and the sum is 78

Algebra ->  Equations -> SOLUTION: one number is 5 times as large as another number and the sum is 78      Log On


   



Question 124844: one number is 5 times as large as another number and the sum is 78
Answer by iluvbuilding429(41) About Me  (Show Source):
You can put this solution on YOUR website!
one number is 5 times as large as another number and the sum is 78


From the information given, you know that:
78=x%2By


And, that 5x takes the place of y:
78=x%2B5x


Add:
78=6x


Divide both sides by 6:
13=x


And because y=5x:
y=5%2813%29


Multiply:
y=65


So, you know that x=13 and y=65. To check, add the two, and they should equal 78.
78=13%2B65


Add:
78=78


-buildings