Answer: A- x - 0.20x = 0.8x
Step-by-step explanation:
precision for 40 feet is 1/2 foot
12 cm is 1/2 cm
for 9 1/2 in is 1/4 in
Answer:
-21
Step-by-step explanation:
-6x + 2y = -18.........(i)
-3x - 2y = 54...........(ii)
add equ.(ii) to equ. (i)
(-6x + [-3x]) + (2y + [-2y]) = -18 + 54
-9x = 36
x = -4
sub x= -4 into equ (i)
-6(-4) +2y = -18
24 + 2y = -18
24 +18 = -2y
42 = -2y
y = -21
