Respuesta :

Answer:

Part a) Daniel's age is 2 years

Part b) Kevin's age is 8 years

Step-by-step explanation:

The question is

Part a) How old is Daniel?

Part b) How old is Kevin?

Let

x ----> Kevin's age

y ----> Daniel's age

we know that

[tex]x=4y[/tex]-----> equation A

[tex]x=y+6[/tex] ----> equation B

Equate equation A and equation B

[tex]4y=y+6[/tex]

solve for y

[tex]4y-y=6[/tex]

[tex]3y=6[/tex]

[tex]y=2[/tex]

therefore

Daniel's age is 2 years

Find the value of x

substitute the value of y in any of the two equations

[tex]x=4(2)=8\ years[/tex]

[tex]x=2+6=8\ years[/tex]

therefore

Kevin's age is 8 years

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