Is it both B, or is one a?
Answer:
132
Step-by-step explanation:
there are 66 hands in party so we multi 2 by 66=132
Answer:
68 ft^2
Step-by-step explanation:
The shaded region is a square missing a triangle. Thus, the area of the shaded region = area of square - area of triangle
Thus, we get 8*9 - 1/2 * 2 * 4 = 72 - 4 = 68 square feet.
We are given that:
t = time required for Sprinkler System A
t + 4 = time required for Sprinkler System B
Hence the rates are:
1 / t = rate for Sprinkler System A
1 / (t + 4) = rate for Sprinkler System B
The overall equation is:
1 / t + 1 / (t +
4) = 1 / 1.5
Solving for t by multiplying everything by t*(t + 4):
t + 4 + t = (1 / 1.5) (t) (t + 4)
3 t + 6 = t^2 + 4 t
t^2 + t = 6
Completing the square:
t^2 + t + 0.25 = 6 + 0.25
(t + 0.5)^2 = 6.25
t = -0.5 ± 2.5
t = -3, 2
Since time cannot be negative, therefore:
t = 2 hours
t + 4 = 6 hours
Alone, Sprinkler System A takes 2 hours while Sprinkler
System B takes 6 hours.
Answer:
231z = 256
Step-by-step explanation:
231z = 256. That's all you have to do. If you wish, divide both sides by 231 to find the value of z.
