The Trumbull Tree Farm sold 390 trees last week. All of the trees were either evergreens, oaks, or maples. Twice as many oak trees as evergreen trees were sold. 5 times as many maple trees as oak trees were sold. How many oak trees were sold last week?

60

Step-by-step explanation:

We can use x to represent the number of oak trees.

This means evergreen trees will be 1/2x and 5x will be the maple trees.

Set up an equation:

x + 1/2x + 5x = 390

6.5x = 390

x = 60

So, 60 oak trees were sold last week.

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step-by-step explanation: