Solve for x: Finding Apples per Tree in (90/x)(x+2)(20) = 3000

Question

Marcos has x+2 x+2 orchards. In each orchard, there are 20 trees and on each tree there are 90x \frac{90}{x} apples.

If Marcos has 3000 apples in total, then how many apples are there on each tree?

Step-by-Step Solution

To solve this problem, follow these steps:

  • Step 1: Set up the equation using given information.
  • Step 2: Simplify and solve the quadratic equation for x x .
  • Step 3: Calculate the apples per tree using the value of x x .

Now, let's solve the problem:

Step 1: Formulate the equation for the total number of apples:

The total number of apples is given by:

(x+2)×20×90x=3000 (x + 2) \times 20 \times \frac{90}{x} = 3000

Step 2: Simplify the equation:

Expand and rearrange:

20(x+2)90x=3000 20(x + 2)\frac{90}{x} = 3000

Calculate the expression:

20×(x+2)×90x=3000 \Rightarrow 20 \times (x + 2) \times \frac{90}{x} = 3000

Simplify to:

1800+3600x=3000 1800 + \frac{3600}{x} = 3000

Revise by multiplying through by x x to eliminate the fraction and solve for x x :

1800x+3600=3000x 1800x + 3600 = 3000x

Rearranging gives:

3000x1800x=3600 3000x - 1800x = 3600

1200x=3600 1200x = 3600

Solving for x x :

x=36001200=3 x = \frac{3600}{1200} = 3

Step 3: Calculate the apples per tree using x=3 x = 3 :

Apples per tree=90x=903=30 \text{Apples per tree} = \frac{90}{x} = \frac{90}{3} = 30

Therefore, each tree has 30\boxed{30} apples.

Answer

30