Answer:the first number is 3.8
The second number is 0.4
Explanation:
Let x represent one if the numbers.
Let y represent the other number.
The sum of the first number and three times the second number is 5. It means that
x + 3y = 5 - - - - - - - - 1
the sum of second number and two times the first number is 8. It means that
2x + y = 8 - - - - - - - - - - 2
Multiplying equation 1 by 2 and equation 2 by 1, it becomes
2x + 6y = 10
2x + y = 8
Subtracting, it becomes
5y = 2
y = 2/5 = 0.4
Substituting y = 2/5 into equation 2, it becomes
2x + 2/5 = 8
10x + 2 = 40
10x = 40 - 2 = 38
x = 38/10 = 3.8