Drey09idn
Answered

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Aning is 4 years older than Sendo. Five years from now, her age will be twice as Sendo's age 3 years ago. How old is each number?


Sagot :

Let x be the age of Sendo. x = Sendo's age x + 4 = Aning's age Linear Equation: 2 (x-3) = (x + 4) + 9 2x -6 = x + 9 2x = x + 9 + 6 2x = x + 15 2x - x = 15 x = 15 x = 15 = Sendong's age x + 4 = 15 + 4 = 19 = Aning's age Check: 2(x-3) = x + 9 2 (15 - 3) = 15 + 9 2(12) = 24 24 = 24, Correct!!! Answer: Sendong's age is 15 years old and Aning's age is 19 years old. Check: 1.) Aning's age is 4 years older than Sendong's: 15 and 19 ( is 19 four more than 15? Yes, check it. 2.) Is Aning's age after 5 years is twice Sendong's age 3 years ago? 19 + 5 = 15 - 3 24 = 12 ( Correct! It is twice Sendong's age!!! Check!!!