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Svetradugi [14.3K]
3 years ago
11

The price of a vase was increased by 10% to £22.What was the price before the increase

Mathematics
1 answer:
Anton [14]3 years ago
6 0

Answer: £20.

Step-by-step explanation:

Let the old price = £x

Percent increase. = 10%

Increment. = 10% of £x

= 10x/100

Now new price = £22

To determine the old price we have

x + 10x/100. = 22

We now multiply everything by 100 to make it a linear expression

100x + 10x = 2200

110x = 2200, therefore

x. = 2200/110

= £20

Therefore, the price before the increase. = £20.

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The cost of taking your pet aboard the air flight with you in the continental US varies according to the airlines. The five numb
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Answer:

Lowest is 100

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Step-by-step explanation:

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3 years ago
The population of a town is 6500 and is increasing at a rate of 4% each year. Create a function for this scenario. At this rate,
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Answer:

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Step-by-step explanation:

If the population increases at a rate of 4% per annum, then:

In year 1:

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Where P_0 is the initial population and P_n is the population in year n

In year 2

P_2 = P_1 + 0.04P_1

It can also be written as:

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Taking out common factor P_0

P_2 = (1 + 0.04) (P_0) + 0.04P_0 (1 + 0.04)

Taking out common factor (1 + 0.04)

P_2 = (1 + 0.04) (P_0 + 0.04P_0)

Taking out again common factor P_0

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