53+44=97
180-97=83
C=83 degrees
b=180-83
b is 97 degree
180 because straight line btw
28+97=125
180-125=55
a=55 degrees
Angles in triangle add up to 180 degree s
rad 89 = 9.43398
bcuz: 9.43398^2 = 88.9 which rounds to 89
6x0=0 I know the answer I did it on my test
Let x be the mass of the paperbacks and y be the mass of the textbook.
20x + 9y = 44.4 ----------- (1)
25x + 10y = 51 -------------(2)
(1) x 10:
200x + 90y = 444 --------(1a)
(2) x 9:
225x + 90y = 459 --------(2a)
(2a) - (1a):
25x = 15
x = 0.6 -------- sub into (1)
20 (0.6) + 9y = 44.4
12 + 9y = 44.4
9y = 44.4 - 12
9y = 32.4
y = 3.6
So the paperback's mass is 0.6 pounds and textbook is 3.6 pounds
