Answer:
15 and 25
Step-by-step explanation:
15 plus 25 equals 40,
25 minus 15 equals 10.
this could be solved algebraically using a system of equations.
Let a = the first number
Let b = the second number
Our two equations using the information given in the question:
a + b = 40
b - a = 10
Isolate for one of the variables in either equation, then plug that into the other one:
b = a + 10
a + (a + 10) = 40
Now solve for a:
2a + 10 = 40
2a = 30
a = 15
Now that you know what a is, plug it into one of the original equations and solve for b.
a + b = 40
(15) + b = 40
b = 25
And there you have it, a = 15 and b = 25.
