Answer:
picture of graph is attached. lmk if ur getting these right. its been a while since I've dont this
75/3=25 miles per hour
That's your answer.
In that situation, you use the information you DO have. It's not always
enough to do the job. But often it is, and in that case, you use what you
do have to answer the question or solve the problem.
Sadly, I can't be any more specific than that. You haven't told us what
information you do have ... only what information you don't have.
Alright, so we'd use the combinations with repetition formula, so we choose from 4 schools to distribute to and distribute 8 blackboards. It's then
( 8+4-1)!/8!(4-1)!=11!/(3!*8!)=165
For at least one blackboard, we first distribute 1 to each school and then have 4 blackboards left, getting (4+4-1)!/4!(4-1)!=7!/(4!*3!)=35
