The ratio of Grade 8 students to Grade 7 students on a trip is 13:10. If there are 12 more Grade 8 students than Grade 7 students, how many students are on the trip?

43

step-by-step explanation:

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

step-by-step explanation:

yes it represnts a functio, their are not 2 of the same numbers on the both sides