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pickupchik [31]
3 years ago
13

What are the steps for 80% of 25​

Mathematics
2 answers:
AlladinOne [14]3 years ago
4 0

Answer:

20

Step-by-step explanation:

25 times 80%=20

Andrews [41]3 years ago
3 0

Answer:

20

Step-by-step explanation:

25/x=100%/80%

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Find the volume of the sphere.
nataly862011 [7]

Answer:

Volume of a sphere = 4πr³/3

r=10

V = 4πx10³/3

=4000π/3

V= 1333.33π (in terms of pi)

or

V= 4188.79(Nearest Hundredth).

7 0
2 years ago
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Nick bought a new car.
ira [324]

Using an exponential function, it is found that it takes 5.42 years for the car to halve in value.

<h3>What is an exponential function?</h3>

A decaying exponential function is modeled by:

A(t) = A(0)(1 - r)^t

In which:

  • A(0) is the initial value.
  • r is the decay rate, as a decimal.

In this problem, the car depreciates 12% a year in value, hence r = 0.12 and the equation is given by:

A(t) = A(0)(0.88)^t.

It halves in value at t years, for which A(t) = 0.5A(0), hence:

A(t) = A(0)(0.88)^t

0.5A(0) = A(0)(0.88)^t

(0.88)^t = 0.5

\log{(0.88)^t} = \log{0.5}

t\log{0.88} = \log{0.5}

t = \frac{\log{0.5}}{\log{0.88}}

t = 5.42.

It takes 5.42 years for the car to halve in value.

More can be learned about exponential functions at brainly.com/question/25537936

#SPJ1

9 0
1 year ago
Daniela ha comprado una finca . Si cada metro cuadrado ñe ha costado 100$ , ¿ cuánto le ha costado la finca?
12345 [234]
Creo que te falta información posiblemente la imagen de la finca
8 0
3 years ago
Help me!! Thank you for the help!!
VLD [36.1K]

Answer:

D. 0.34

Step-by-step explanation:

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6 0
3 years ago
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olga_2 [115]

Answer:

Step-by-step explanation:

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3 years ago
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