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.”

Javier writes the equation (10 + two-thirds) a = 50, where a is the tree’s age in years. His equation is not correct. What error did he make?

Answer 1

It should be a(two third)+10=50

Answer 2

Javier's equation is not correct because the variable "a" should be multiplied by only and then added to

Explanation:

Let

a------>is the tree’s age in years

we have that

-------> Javier's equation

we know that

The equation that represent the situation is equal to

Solve for a

Multiply by both sides

Javier's equation is not correct because the variable "a" should be multiplied by only and then added to