Question:
Solution:
Let x represent the first number and y represent the second number, according to the problem, we get the following two equations:
Equation 1: the sum of two numbers is 70:
[tex]x+y=70[/tex]and
Equation 2: The first number is 2/5 of the second number :
[tex]\text{x = }\frac{2}{5}y[/tex]Then, we can conclude that the correct system of equations that represent the problem is:
[tex]x+y=70[/tex][tex]\text{x = }\frac{2}{5}y[/tex]