Question

Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.”

Answer 1

Answer : $\bold{60 \: years}$



Explanation -


Given :

The sum of 10 and two-third of that trees age is equal to 50.

Let the trees age = x

The variable of x should be multiplied by 2/3 and then add 10 .


Form Equation -


$10 + \dfrac{2x}{3} = 50$


$\dfrac{30 + 2x}{3} = 50$

$30 + 2x = 150$


$2x = 150 - 30$


$2x = 120$


$x = \dfrac{120}{2}$

$x = 60$


Hence :


$\bold{Tree's \: age \: = 60 \: years}$