One number is 1/4 of another number. The sum of the two numbers is 25. Find the two numbers. Use a c | MathCelebrity Forum

One number is 1/4 of another number. The sum of the two numbers is 25. Find the two numbers. Use a c

math_celebrity

Administrator
Staff member
One number is 1/4 of another number. The sum of the two numbers is 25. Find the two numbers. Use a comma to separate your answers.

Let the first number be x and the second number be y. We're given:
  1. x = 1/4y
  2. x + y = 25
Substitute (1) into (2)
1/4y + y = 25

Since 1/4 = 0.25, we have:
0.25y + y = 25

Type this equation into the search engine to get:
y = 20

Now, substitute this into (1) to solve for x:
x = 1/4y
x = 1/4(20)
x = 5

The problem asks us to separate the answers by a comma. So we write this as:
(x, y) = (5, 20)
 
Back
Top