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gavmur [86]
2 years ago
5

A computer originally purchased for $2000, loses value according to the exponential equation

Mathematics
1 answer:
marshall27 [118]2 years ago
5 0

The half life of the value of the computer is =  2 years

The time it will take for the computer to be worth 10% of its purchase price= 3.5 years.

<h3>Calculation of the half-life of computer</h3>

V = value of computer= $2000

t = time after original purchase = 1 year

h = half-life of the value of the computer

The half-life value can be calculated using the given formula;

V(t) = 2000(1/2)^t/h

2000×1 = (2000×1/2)^1/h

2000= 1000^1/h

Make h the subject formula,

h= 2000/1000

h = 2 years

The time it will take for the computer to become 10% of its purchase price is,

10/100×2000

= 20000/100

=$200

If after 1 year the computer= $1516

This means that in a year the price of the computer reduces by approximately $500

Therefore it will take approximately 3.5 years to purchase the computer at 10% it's organic price.

Learn more about percentage here:

brainly.com/question/24304697

#SPJ1

         

computer

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kaheart [24]

Answer:

  First "order of operations" mistake: step 2

  First arithmetic mistake: step 4

Step-by-step explanation:

As we understand Rena's work, she wants to simplify ...

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<u>Step 1</u>

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<u>Step 2</u>

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<u>Step 3</u>

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<u>Step 4</u>

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_____

So, the first arithmetic error is in Step 4. However, the order of operations requires exponents be evaluated first. Doing that makes step 2 look like ...

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We expect your answer is supposed to be Step 4.

7 0
3 years ago
the ratio of girls to boys in the sixth grade is 5:3. If there are 400 sixth graders, how many boys are there?
PilotLPTM [1.2K]

Answer:

boys = 250

girls = 150

Step-by-step explanation:

5g = 3b       eq. 1

g + b = 400       eq. 2

g = girls

b = boys

From the eq. 2

g = 400 - b

Replacing this last eq. on eq. 1:

5(400-b) = 3b

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Check:

from eq. 1

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Answer:

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