Question

The number of weekly social media posts varies directly with the square root of the poster's age and inversely with the cube root of the poster's income. If a 16-year-old person who earns $8000 makes 64 posts in a week, what is the value of k?

Answer 1

320

Explanation:

With regards to the above, if a 16 year old person who earns $8,000 makes 64 posts in a week, what is the value of k.

We can find the value of k to be;

64 = (√16)/(3√8,000) . k

= 4/20 . k

= 1/5 . k

= 0.2k

K = 64 × 5

K = 320