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svp [43]
4 years ago
12

Amy earns £10.00 per hour. She gets a raise, and her new hourly rate is £11.50. What is the percentage change in her hourly rate

?
Mathematics
2 answers:
Nookie1986 [14]4 years ago
7 0

Answer: 15%

Step-by-step explanation:

% change = change/ actual value x 100

Change = 11 .50 - 10 = 1.5

Therefore % change = 1.5/10 x 100

= 15%

kherson [118]4 years ago
3 0

The percentage change in the Amy’s hourly rate is 15 %.

<u>Solution:</u>

Given, Amy earns £10.00 per hour.  

She gets a raise, and her new hourly rate is £11.50

We have to find what is the percentage change in her hourly rate?

<em><u>The percentage change is given as:</u></em>

\text { Percentage change }=\frac{\text { change in the value }}{\text { original value }} \times 100 \%

Here original value = 10

Final value = 11.50

<em>Change in value = Final value – Original value </em>

Change in value = 11.50 – 10 = 1.5

Plugging in the values in formula we get,

\begin{array}{l}{\text { Percentage change }=\frac{1.5}{10} \times 100 \%} \\\\ {=1.5 \times 10 \%=15 \%}\end{array}

Hence, the percentage change in the Amy’s hourly rate is 15 %.

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Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hu
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Answer:

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Step-by-step explanation:

<em>The graph is missing; however, the question can still be solved</em>

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Required

Determine the monthly cost for 9 HCF

From the question, we understand that it is a linear function;

Linear functions are of the form

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Where y is the function of x and m is the slope

In this case; the function is the monthly water bill

and x is the amount of water

Solving for b

When monthly cost = $47.84, Amount of water = 15 HCF

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Subtract 23.25 from both sides

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b = 24.59

Substitute these values in the linear function; y = mx + b

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This means that if there are 512 security number without matching zeros, then there is 1 (i.e. 512 + 1) with matching zeros.

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