PLEASE HELP ME!! A runner's racecourse has a total distance of 7.5 mi. Race officials want to mark the course every 400 yd with a flag, including one at the finish line. (The
starting line does not need a flag.) How many flags are needed?
First fill in the blanks on the left side of the equation using three of the ratios shown. Then write your answer on the right side of the equation.

side side side

side angle angle

angle side angle

side angle side

step-by-step explanation:

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

answer are

step-by-step explanation: