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the sum of two numbers is 70 . The first number is 2/5 of the second number

Sagot :

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]

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