36 and 48
a = b+12
a+b = 84
(b+12) + b =84
2b +12 = 84
2b = 72
b= 36
a = b + 12
a = 36 + 12
a = 48
634, you have to multiply it by 89% of the original number, 712, to deduct 11%
You would be able to make 90 more envelopes
Multiply both sides by 2pi:
F(2pi) = sqrt(g/l)
Square both sides:
F^2 (2pi)^2 = g/l
Solve for l by dividing both sides by F^2 (2pi)^2
L = g/ F^2 (2pi)^2
Simplify:
L = g / 4pi^2(f^2)
Answer:
90 inches
Step-by-step explanation:
The formula for volume is LxWxH so you just gotta do 5x6x3
which is 90.
