At the start of 2014 Mike's car was worth £12000.The value of the car decreased by 30% every year.
Work out the value of his car at the start of 2017.
Answers
The value of Mike's car at the start of 2017 is £4116.
What is percentage ?
Percentage is a ratio in the form of fraction of 100.
Percentage is defined by the "%" symbol.
What is the required value of the car ?
At the start of the year 2014, Mike's car was worth £12000.
The value of the car decreased by 30% every year.
So, The value of the car at the start of 2015 = £12000×
= £ 12000×
= £ 8400
Again, The value of the car at the start of 2016 = £8400×
= £8400×
= £5880
∴ The value of the car at the start of 2017 = £5880×
= £5880×
= £4116
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Answers
Answer:
J and K are supplementary
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Given
The attached image
Required
The true statement
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Answers
The number of tiles needed to cover the surface area of the box excluding the bottom is: 1,046 tiles.
What is the Surface Area of a Box?
The surface area of a box is the area surrounding all its faces. A box has 6 rectangular faces. Therefore, the total surface area of the box equals the sum of all 6 rectangular faces.
What is the Surface Area of a Box?
SA = 2(lw + lh + hw), where:
- l = length
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The image attached below shows the box Dmitri wants to cover. Since the bottom of the box would be excluded, therefore:
The surface area to be covered = surface area of the box - area of the bottom rectangular face
The surface area to be covered = 2(lw + lh + hw) - (l)(w)
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The surface area to be covered = 2(l×w + lh + hw) - (l)(w) = 2·(15·26+8·26+8·15) - (26)(15) =
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Number of tiles needed = 1,046/1
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