20%
70 x n%= 56
n% = 70 x 56
n = 0.8 x 100
n = 80
the percent decrease = 100 - 80
= 20 %
Answer:
5 : 30
Step-by-step explanation:
30/6 = 5
1 * 5 = 5
5 : 30
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Solution :
Now, simplifying the given equation :
( Using, (a+b)² = a² + 2ab + b² )
Therefore, the simplification of given equation is :
The spinner is a circle and the three sectors are congruent with means that each sector has the same area. The formula for the area of a sector is\
A = (1/2) r² θ
We are given with
r = 3 in
θ = 120°
Converting degrees to radians
θ = 120° (π/180°)
θ = 2π/3
Solving for the area
A = (1/2) (3)² (2π/3)
A = 3π ≈ 9.24 in²
6.5 hours is equal to:
60 mins x 6 + 30 mins = 390 mins
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42.25 / 390 = 13/120
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Now there are 60 minutes in an hour, so what we do is multiply 13/120 by 60 to find out how much you earn per hour...
13/120 x 60 = 6.5
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You earn $6.50 per hour.