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Fudgin [204]
3 years ago
7

A store is selling scooter for $40. You have a coupon and person for $15. What percent was the coupon? 20 points!! ​

Mathematics
1 answer:
Paraphin [41]3 years ago
5 0

Answer:

$15 is 37.5% of $40.

Step-by-step explanation:

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The circle shown is centered at the origin and contains the point (-4, -2). What is the length of the diameter of the circle? Ro
trasher [3.6K]

Step-by-step explanation:

Equation for circle centered at origin:

x² + y² = r².

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Solve for x<br> A) 36<br> B) 54<br> C) 72<br> D) 84 <br> Ayo help a girl out
kykrilka [37]

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Step-by-step explanation:

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6 0
3 years ago
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Help with the following problem please
Effectus [21]
Given:
The largest circle has a radius of R=7 units.
Let x be the radius of the large shaded circle.
The small shaded circles have a radius of 1/5 of the large shaded circle.
=> the small shaded circles have a radius of r=x/5

By adding up radii, we have the equation
2(r+x+r)=2(x/5+x+x/5)=2R=2*7=14
Simplify:
7x/5=14/2
x=5
=> r=1

Area of outer circle                  = \pi R^2=\pi7^2=49\pi
Area of large shaded circle      = \pi x^2=\pi5^2=25\pi
Area of 4 small shaded circles = 4\pi r^2=4\pi1^2=4\pi
Total area of shaded circles     =25\pi+4\pi=29\pi

Shaded area as a fraction of that of the outer circle 
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Step-by-step explanation:

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