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vazorg [7]
3 years ago
13

A new car sells for $25,000. The value of the car decreases by 17% annually. After how many years will the car be worth less tha

n $10,000. Choose the best answer. (4.2)
a. after 4 years


b. after 6 years


c. after 8 years


d. not enough information
Mathematics
1 answer:
jonny [76]3 years ago
5 0

Let a = car's age in years and v = value of car.

v = 25000(1 - 0.17)^a 

v = 25000(0.83)^a 

v = 25000(0.83)^a 

We need to find a.

Let v = 10,000

10,000 = 25000(0.83)^a

The value of a is about 4.91758.

Round off to the nearest whole number we get 5.

Answer is after more than 4 years but less than 6 and 8.

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Mariana [72]
13,000*0.05+12,000*0.06+4,000*0.08=1,690.00
7 0
3 years ago
50 POINTS IF YOU ANSWER CORRECTLY please I need help:)
Zinaida [17]

Answer:

60 degree

Step-by-step explanation:

They are complementary angles which means they must add up to 90.

As WOX is 30 degree then

90-30=60.

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3 years ago
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7 0
3 years ago
Which equation results from adding the equations in this system?
Diano4ka-milaya [45]

Answer:

  • D. - 5x = - 10

Step-by-step explanation:

<u>Given equations:</u>

  • -8x+8y = 8
  • 3x-8y=-18

<u>Add together:</u>

  • -8x + 8y + 3x - 8y = 8 - 18
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Correct option is D

7 0
3 years ago
What is the result when the number 80 is decreased by 32%?
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Answer:

54.4

Step-by-step explanation:

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