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skelet666 [1.2K]
3 years ago
14

The cost of a ticket increases by 10% to£18.15 Work out the original cost

Mathematics
2 answers:
marysya [2.9K]3 years ago
8 0

Answer:

£16.50

Step-by-step explanation:

Let cost price be x

<em>Now, create a formula:</em>

x + 10x / 100 = 18.15

'or'

110x / 100 = 18.15

'or'

x = (18.15*100) / 110

x = 16.5

Maksim231197 [3]3 years ago
4 0

Let the original price = x

An increase of 10 % = 18.15

Multiply x by (1 + percent increase) which is 1.1x = 18.15

Now to find x divide both sides by 1.1:

X = 16.50

The original price was 16.50

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Answer:

y — x = 5

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Step-by-step explanation:

Let the fifth score be x

Let the average of all the scores be y.

But the fifth score is 5 points lower than the average ie

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The average of the scores is the sum of all the scores divided the number of scores. This is written as

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Multiply through by 5

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The equation Markus will use to determine the x is given as

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2 years ago
Evaluate the following expression. You should do this problem without a calculator. ln e^e
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