Chelsea bought a total of 8 nails at Ace Hardware. She purchased both 6-penny nails and 10-penny nails. She bought 2 more 6-penny nails than she did 10-penny nails. She had a total of 8 nails. How many 6-penny and 10-penny nails did Chelsea purchase?

6 6-penny nails

2 10-penny nails

Step-by-step explanation:

-1/2 +2

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 %