Answer:
Step-by-step explanation:
3x - 4y = 13 (1)
2x + y = 5 (2)
——————
3x - 4y = 13
4(2x + y = 5) (2) times 4
——————-
8x + 4y = 20
11x = 33
x = 33/11
x = 3
Plug x = 3 in (2):
2(3) + y = 5
6 + y = 5
y = 5-6
y = -1
Thus, x = 3 and y = -1
G 15.99h > 188.55 + 9.75h
1/2 + 2/3 + 5/4 = 29/
12
= 2 5/
≅ 2.4166667
x = -1/2
28th day