An oak tree that is 220 years old produced acorns at two different rates. until it reached maturity, it produced an average of 900 acorns a year. however, once the tree reached maturity, it produced an average of 2200 acorns a year. one particular tree, angel oak, has produced about 289,000 acorns in its lifetime. at what age did it reach maturity?
a) 188
b) 150
c) 138
d) 148

The answer is B: 150

Let a be the age at which the tree reaches maturity

289000 = 900a + 2200(220-a)
289000 = 900a + 484000 - 2200a
289000 - 484000 = -1300a
a = -19500 / -1300
a = 150

what?

step-by-step explanation:

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step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )