Explanation: There are 24 hours in a day, and the robots use 2 bags of coffee a day, so you gotta do 24/2 and that means 1 bag of coffee lasts 12 hours. Next, the question is how long does 1/4 bag last, so you do 12/4 and get 3, therefore the correct answer is 3 hours. Hope this helped!
Let the number of years after 2001 be x, then 1280000 + 19500x = 1700000 19500x = 1700000 - 1280000 = 420,000 x = 420000/19500 = 22 years. x = 22 years.
So, because the bike was 10% off, we know that the bike is now at 90% of its original value (100%-10% = 90%) So to find the new value, we multiply the price by 90%: 0.9*206 = 185.4 The bike will cost Manuel $185.4
