1.
solve the following system using substitution: y = 4x - 7 and y = 2x + 9

(25,8)

(8,25)

(0,8)
2.
solve each system using elimination: x + y = 10 and -x - 2y = -14

(-4, 6)

(6, 4)

(-14, 10)

idk

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 %