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Bobby,Billy, and Barry smith are each one year apart in age. The sum of their ages is greater than the age of their father , who is 60. How old the oldest brother can be?

Respuesta :

calculista

Answer:

The age of the oldest brother must be greater than 21 years

Step-by-step explanation:

Let

x, x+1 and x+2 -----> the ages of the brothers

we know that

The sum of their ages must be greater than 60

so

The inequality that represent this situation is

[tex]x+(x+1)+(x+2) > 60[/tex]

Solve for x

Combine like terms

[tex]3x+3 > 60[/tex]

Subtract 3 both sides

[tex]3x > 60-3[/tex]

[tex]3x > 57[/tex]

Divide by 3 both sides

[tex]x > 19[/tex]

so

if  [tex]x > 19[/tex]

[tex]x+1 >20\ years\\x+2 > 21\ years[/tex]

therefore

The age of the oldest brother must be greater than 21 years

alexisst0618

Answer:

22

Step-by-step explanation:

It would be 22 since it says that there ages combined is greater than 60, not equal to 60.

21+20+19= 60, so the youngest age the oldest brother could be is 22 since

22+21+20= 63 which is greater than 60, not equal to 60.

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