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3 years ago

15

A car’s value decreases 5% every year after it is purchased. If the original price of the car was $30,000, how much is the car w

orth in 7 years?

1 answer:

topjm [15]3 years ago

7 0

Answer:

20,950.12

Step-by-step explanation:

use the formula A=P(1-r/100)^n,P=30000,r=5%,,n=7

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4 years ago

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3 years ago

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A movie theater earned $3,600 in sold-out ticket sales for the premiere of a new movie. VIP tickets cost $20 per person and regu

julia-pushkina [17]

There are 300 seats in the theater.

Step-by-step explanation:

Given,

Cost of one VIP ticket = $20

Cost of one regular ticket = $8

Worth of sold out tickets = $3600

Let,

x represent the number of VIP tickets sold

y represent the number of regular tickets sold

20x+8y=3600 Eqn 1

y = 2x Eqn 2

Putting value of y from Eqn 2 in Eqn 1

$20x+8(2x)=3600\\20x+16x=3600\\36x=3600$

Dividing both sides by 36

$\frac{36x}{36}=\frac{3600}{36}\\x=100$

Putting x=100 in Eqn 2

$y=2(100)\\y=200$

Total = x+y = 100+200 = 300

There are 300 seats in the theater.

Keywords: linear equation, substitution method

Learn more about substitution method at:

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3 years ago

If Duane adds 230 mL of milk to the 0.4 L of milk in the pitcher, how many mL of milk will be in the pitcher? How many L?

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A particular computer takes 14 minutes to download a 56-minute TV show. How long will it take the computer to download a 2.5-h

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