Darby solved the equation correctly but does not know what the final line means. In the box below, explain what Darby's calculations Indicate.

3(1/2x + 9) = x-12+ 1/2x
3(1/2x) + 3(9) = x+ 1/2x-12
3/2x + 27 = (1 + 1/2)x - 12
3/2x + 27 = 1 1/2x - 12
3/2x - 3/2x + 27 = 1 1/2x - 3/2x - 12
27= -12

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )

70

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 %