Mark cycles from home to school at a speed of 16 kilometers per hour. He cycles back on the same route at a speed of 15 kilometers per hour. The total time taken for the journey is 7 3/4
hours. Given that the distance for his home to school is d kilometers, and that distance -
speed - time, write and solve an equation to find the total distance traveled by him.

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.