Answer:
15
Step-by-step explanation:
a right angle is 90 degrees, so if you divide that by 6 you get one sixth of the angle
You would do 1/4 and get the answer plus 3/8s answer
Answer:
by 
by 
Step-by-step explanation:
In this problem I'm assuming the office is rectangular.
so
The area of rectangle is equal to
where
L is the length of the rectangle
W is the width of the rectangle
In this problem we have
so
------> equation A
Find two possible dimensions of the office
case A) Assume a length side L and find the value of W in the equation A
so
For 
substitute in the equation and solve for W
The dimensions are by
case B) Assume a length side L and find the value of W in the equation A
so
For 
substitute in the equation and solve for W
The dimensions are by
The answer is 264 inches when you use
the formula L × W × H which is 11 × 8 ×
3 = 264 inches
<h3>
Answer: 14 km per hour</h3>
=====================================================
Work Shown:
x = rowing speed when there is no current
c = speed of the current
speeds are in km per hour
-----------
Going downstream, i.e. with the current:
x+c = faster speed since the current is pushing you
distance = rate*time
d = r*t
40 = (x+c)*2
x+c = 40/2
x+c = 20
c = 20-x
-----------
Going upstream, i.e. against the current:
x-c = slower speed since the current is working against you
d = r*t
16 = (x-c)*2
16 = 2x-2c
2x-2c = 16
2(x-c) = 16
x-c = 16/2
x-c = 8
x-(20-x) = 8 ... plug in c = 20-x
x-20+x = 8
2x-20 = 8
2x = 8+20
2x = 28
x = 28/2
x = 14 km per hour is the rowing speed when there is no current
Side note: the speed of the current is c = 20-x = 20-14 = 6 km per hour.
