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MAVERICK [17]
3 years ago
14

Work out the percentage change when a price of £50 is decreased to £40.

Mathematics
2 answers:
wolverine [178]3 years ago
8 0

Answer:

20%

Step-by-step explanation:

Initial price: £50

Decreased price: £40

The difference: £50-£40= £10

Percentage change: £10/£50*100%= 20 %

Ivanshal [37]3 years ago
6 0
So the formula for price change is amount of change / original price * 100
50-40
= 10
10/50*100
= 1/5*100
= 20%
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Answer:

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Step-by-step explanation:

Given R(3, 5), a dilation by a factor of 3 will multiply each coordinate to give ...

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Then the translation up by 3 will give you the image coordinates ...

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The coordinates of R' are (9, 18), matching choice C.

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<em>Comment on multiple choice answers</em>

As it often does, here it works to "guess" the answer that has the coordinates that are most-repeated. An x-coordinate of 9 is part of 3 answer choices; a y-coordinate of 18 is the only repeated value in the answer choices. If you were to guess, an appropriate guess would be (9, 18). That happens to be correct in this case.

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Answer:

The augmented matrix for the system of equations is \left[\begin{array}{cccc}0&2&-3&1\\7&0&5&8\\4&1&-3&6\end{array}\right].

Step-by-step explanation:

This system consists in three equations with three variables (x, y, z).The augmented matrix of a system of equations is formed by the coefficients and constants of the system of linear equations. In this case, we conclude that the system of equations has the following matrix:

\left[\begin{array}{cccc}0&2&-3&1\\7&0&5&8\\4&1&-3&6\end{array}\right]

The augmented matrix for the system of equations is \left[\begin{array}{cccc}0&2&-3&1\\7&0&5&8\\4&1&-3&6\end{array}\right].

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Step-by-step explanation:

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