Let the length of one of the shorter pieces be
. Then, we know that two of the pieces are that length, and the third piece is
. Since these are all pieces of a rope, all we need to do to figure out the lengths is add all those together, solve for
, and then plug that back in to the desired lengths:
Shorter pieces:
Longer piece:
Answer:it would be 1/16+1/4=1 mile
Step-by-step explanation:
First we see that we can factor out a 5 from everybody
5(-a^2+2ab^2-4+5ba^3)
trial and eror and experience
order in poawer order
5(5a^3b-a^2+2ab^2-4)
5(a^2(5ab-1)+2(ab^2-2))
dunno how to go on further
For this case, you must use the given expression, taking into account that:
n = number of days.
We have then that for day 21, n = 21.
Substituting we have:
a21 = 100 + (21-1) * 4
a21 = 180
Answer:
she sprints 180 yards on day 21
