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Sedaia [141]
2 years ago
5

PLEASE DONT COPY THE ANSWER FROM SOMEWHERE ELSE PLEASE

Mathematics
1 answer:
klio [65]2 years ago
8 0
2x+x=36
Kim's Sister age

2x+x=36 Add "x and 2x"
3x=36 Divide both sides by 3
÷3 ÷3
x=12
Kim's sister is 12 years old
Soo....
Multiply that by two to get Kim's age

12•2=24 Kim is 24 years old.
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Caitlyn’s family has a circular swimming pool. The circumference of the pool is 25.12m What is its area?
Natasha2012 [34]

Answer:

A = 50.26 sq meters

Step-by-step explanation:

we have to find the diameter first by using the circumference:

C = πd

25.12 = πd

25.12/π = d

8 = d

this means the radius is 4

A = πr²

A = π4² or 16π

A = 50.26 sq meters

4 0
2 years ago
A mother is 13/4 times as tall as her son. Her son is 3 feet tall how tall is the mother.
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According to the US Census, Virginia had about 7.1 million residents in 2000. Of those, 24.6% were under age 18. To the nearest
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4 0
2 years ago
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Sphinxa [80]

Answer:

Y= -4X + 8

Step-by-step explanation:

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3 0
3 years ago
The radius of a sphere is increasing at a rate of 5 mm/s. how fast is the volume increasing when the diameter is 60 mm? evaluate
mamaluj [8]
The diameter of the sphere is 60 mm which means its radius is 30mm. <span>The radius of a sphere is increasing at a rate of 5 mm/s. 
The formula for the radius when the time is x second would be:
</span>r(t)<span>= 30+ 5x
dr/dt= 5

The speed of </span><span>volume increase </span><span>of the sphere volume would be derived from sphere volume: 
</span>V(r)=4/3* pi * r^3<span>
dV/dt= 4/3 * pi * 3r^2 * (dr/dt) =4/3* pi * 3(30)^2 * 5 =  18000 pi= 56571 mm^3/s</span>
4 0
3 years ago
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