You buy a painting for $1500. The art work increases by 50% annually. When will the painting have a value of $10,000?

1500 + 1500*0.5*t = 10000,

t = ?.

To find out when the painting will have a value of $10,000, we can use a simple mathematical formula.

Let's assume that the number of years it takes for the painting to reach a value of $10,000 is represented by 'n'.

We know that the painting increases in value by 50% every year. So, the value of the painting after the first year would be:

$1500 + (50% of $1500) = $1500 + ($1500 * 0.50) = $1500 + $750 = $2250

Similarly, the value after the second year would be:

$2250 + (50% of $2250) = $2250 + ($2250 * 0.50) = $2250 + $1125 = $3375

Following the same logic, we can generalize the formula for finding the value of the painting after 'n' years:

Value after 'n' years = $1500 * (1 + 0.50)^n

Now, we can set up an equation to find the value of 'n' when the painting reaches $10,000:

$1500 * (1 + 0.50)^n = $10,000

Dividing both sides of the equation by $1500, we get:

(1 + 0.50)^n = $10,000 / $1500 = 6.67

To solve for 'n', we need to take the logarithm of both sides of the equation. By using the logarithmic property, we can solve for 'n':

n * log(1 + 0.50) = log(6.67)

Finally, we can solve for 'n' by dividing both sides of the equation by log(1 + 0.50):

n = log(6.67) / log(1 + 0.50)

Using a calculator, we can evaluate the right side of the equation, which gives us:

n ≈ 4.34

Since 'n' represents the number of years, it is not possible to have a fraction of a year. Therefore, rounding up the value of 'n' to the nearest whole number, we find that the painting will have a value of $10,000 after approximately 5 years.