If I plant a 7 foot tall tree. The height (h) of the tree, in feet, after n years is given by the equation h + 4n + 7. In how many years will the height be 39 feet?
h + 4n + 7 = 36
Insert 7 for h and solve for n.
To find the number of years in which the height of the tree will be 39 feet, you need to set up the equation h + 4n + 7 = 39 and solve for n.
Here's how you can do it step by step:
1. Write down the equation: h + 4n + 7 = 39. Substitute the given height of the tree, which is 39.
2. Simplify the equation: Subtract 7 from both sides to isolate the variable term:
h + 4n = 39 - 7
h + 4n = 32
3. Substitute the given initial height of the tree, which is 7 feet:
7 + 4n = 32
4. Isolate the variable term by subtracting 7 from both sides:
4n = 32 - 7
4n = 25
5. Solve for n by dividing both sides of the equation by 4:
n = 25 / 4
n = 6.25
The height of the tree will be 39 feet after approximately 6.25 years.