8. line rs is perpendicular bisector of line jl because they intersect, k is the midpoint because it is where they cross each other <span />
Let H represent hardcover
let P represent paperback
H + P = 20
H = P + 10
sub in H into the first eq’n
(P + 10) + P = 20
2P + 10 = 20
2P = 10
P = 5
sub P into eq’n 2
H + (5) = 20
H = 15
therefore there are 5 paperback books and 15 hardcover
Answer:
y=2x-7
Step-by-step explanation:
(hope this helps!)
The answer is c as if u take 22.5 divided by 3.5 u will get 6.4
ANSWER
EXPLANATION
The sum of the exterior angles of a polygon is
So we sum all the exterior angles to obtain,
This implies that,
We group like terms to obtain,
This simplifies to,
Therefore the correct answer is option B.