She bought it at a 15% discount because 15 percent of 40 is 6 and 40-6=34
use the Pythagoras theorem method
a squared plus b squared equals c square
Answer:
L = a √( 4 + 2√2)
Step-by-step explanation:
L = a √( 4 + 2√2) is the equation which can be used to calculate the length of each side of the octagon. In the equation i.e. L = a √( 4 + 2√2), in which ''a'' is the length of each side of the octagon. So by putting of ''a'' we get the length of each side of the octagon. The octagon is regular means all of its sides and angles are congruent or similar to each other. Each angle in the octagon has a measure of 135 degrees.
Answer:
T = 18x + 25
Step-by-step explanation:
Let T = total amount in $
x amount of tents at $10 each (10x)
same amount of tables for $8 each (+8x)
one clown for $25 (+25)
so T = 10x + 8x + 25
T = 18x + 25
