Answer:
16
Step-by-step explanation:
Given the equation, 
, let's solve for x as follows,
Subtract 200 from both sides
Subtract 15x from both sides
Divide both sides by -5
Answer: 60
Step-by-step explanation:
1/3 means 3 packages per 1 pound
3 x 20 + 60
The question ask to find the rate of change of the distance from the paticle to the origin at this instant where as a particle is moving along the curve y = 5sqrt(5x+4) and base on my calculation, I came up with an answer of 254/sqrt(226). I hope you are satisfied with my answer and feel free to ask for more
