Answer:
It will take 1/2 of a year or 6 months for these trees to be the same height.
Step-by-step explanation:
1. Let's review the information given to us to answer the question correctly:
Type A is 2 feet tall and grows at a rate of 25 inches per year.
Type B is 10 feet tall and grows at a rate of 9 inches per year.
2. Algebraically determine exactly how many years it will take for these trees to be the same height.
x = Number of years
Type A = 2 + 25x
Type B = 10 + 9x
Let's solve for x, using the following equation:
Type A = Type B
2 + 25x = 10 + 9x
25x - 9x = 10 - 2
16x = 8
x = 8/16 = 1/2
It will take 1/2 of a year or 6 months for these trees to be the same height.
Let's prove it, this way:
2 + 25x = 10 + 9x
2 + 25 (1/2) = 10 + 9 (1/2)
2 + 25/2 = 10 + 9/2
29/2 = 29/2
14.5 = 14.5
