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A sapling that started out 48 inches tall grew 3 inches per year. How old was the sapling when it was 105 inches tall? Write and solve an equation to find the answer.

Respuesta :

Answer: 19 years old



Explanation: We can use the equation 3x+48=105

3 is the growth rate/slope, 48 is the initial height/the constant, and x is the age

Subtracting 48 from both sides leaves us with 3x=57.

Dividing both sides by 3 gives us x=19.