A whale-watching tour boat has finished viewing a whale and is returning to shore, moving 77 kilometers per hour. The whale coincidentally starts swimming away from the boat at the same time, moving in the exact opposite direction at a rate of 25 kilometers per hour. How long will it be before the whale and the boat are 6 kilometers apart?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?