Step-by-step explanation:
9x+4=15
9x=15-4
9x=11
x=11/9 or 1 2/9
Answer:
274.23 feet
Step-by-step explanation:
From the question,
The measure of the arc between any two blades (s) = 2πrΦ/360
s = 2πrΦ/360................... Equation 1
Where Ф = angle formed betwen two blades, r = length of each blade.
Given: Ф = 360/3 (the three blades are equally spaced) = 120°, r = 131 feet.
Constant: π = 3.14
Substitute these values into equation 1
s = (2×3.14×131×120)/360
s = 274.23 feet.
Hence, the measure of the arc between any two blades is given = 274.23 feet
1/8 is the answer to the question
Answer: 11 minutes.
Explanation: 385 words: (385/140) x 4 = 11 minutes
