2 years ago

0.3(n - 5) = 0.4 – 0.2n

1 answer:

4 0

N=3.8

Steps:

Add 1.5 to both sides.

Combine like terms

Add .2 to both sides

Combine like terms

divide .5 on both sides

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After running 10 miles, David drank 2 bottles of water. His brother was thirstier and drank times as much as David. What equatio

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2 years ago

What is the first step to solve this equation: 12-4x=54

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At the start of 2014 Mikes car was worth £12000. the value of his car decreased 30% every year.

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Answer:

The worth of car at the start of 2014 = $12000

The value of the car decreased 30% every year.

At start of 2015:

30% of 12000 = \frac{30}{100} \times 12000

100

30

×12000 = 3600

So, the value of the car at start of 2015 = 12000-3600 = $8400.

At start of 2016:

30% of 8400 = \frac{30}{100} \times

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100

30

×8400 = 2520

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At start of 2017:

30% of 5880 = \frac{30}{100} \times

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the value of the car at start of 2017 = 5880-1764 = $4116.

So, the value of his car at the start of 2017 is $4116.

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