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irina1246 [14]
3 years ago
5

Mandy bought a desktop computer system to start her business from home for $4,995. It is expected to depreciate at a rate of 10%

per year. After how many years will the value of her home computer system depreciates to approximately $2150
Mathematics
1 answer:
ziro4ka [17]3 years ago
3 0

Answer:

8.43 years

Step-by-step explanation:

Given data

Cost price P= $4995

Rate r= 10%

FInal amount A= $2150

The expression for the time/duration is given as

t= ln(A/p)/r

t= ln(2150/4995)/0.1

t= ln(0.430)/0.1

t= 0.843/0.1

t= 8.43

Hence the time it will take is 8.43 years

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Ashton estimates the square root of 72 in the following way: √72= 2√36=2×6=12 A)Explain why his reasoning is incorrect. B)Estima
Dafna1 [17]

Answer:

8.5

Step-by-step explanation:

To find √72, we must factor 72, remembering that the factor 36 is a perfect square:

√72 = √2·√36, or 6√2.  Ashton failed to take the square root of the factor 2 of 72.

√72 = 6√2, and √2 is approx. 1.414.

Multiplying 1.414 by 6 results in 8.5, which is to the nearest tenth.

7 0
3 years ago
For which values is the graph decreasing? Check all
Alexeev081 [22]

Answer:

between x=-1.5 and x = 0

between x = 0 and x = 1.5

Step-by-step explanation:

For the interval -1.5 < x < 1.5, we can see that the slope is negative (i.e from top left to bottom right). Hence it can be said that the graph is decreasing during this interval.

For the other parts of the graph (as shown) the slope is positive (i.e from bottom left to top right). in those areas, the graph is increasing.

5 0
3 years ago
Read 2 more answers
A train traveled 300 miles in 5 hours. find its rate of speed in miles per hour.
melomori [17]

Answer:

60 miles per hour

Step-by-step explanation:

Speed = \frac{Distance}{Time}

You divide 300 by 5 and you get 60. You always need to divide the upper part to the lower part to reach the distance in ONE UNIT OF TIME. There, you have 5 seconds, yet you need the distance in 1 second.

This all is assuming that the train moved at a constant speed, where

ACCELERATION = 0, which is pretty improbable for a train.

8 0
3 years ago
Which equation represents the total price (p) paid when buying books (b) that cost $3.99 each? How much do 13 books cost?
Mariana [72]

Answer:

Your answer is D p=3.99;$51.87

Step-by-step explanation:

8 0
3 years ago
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Can anyone help please?
Lina20 [59]
Ok ok im gonna with C but if it’s wrong i am sooo sorry
8 0
3 years ago
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