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ASHA 777 [7]
3 years ago
8

Express in the form of p/q : (i) 0.12▁3 (ii) 0. ▁621 (iii) 2.2▁18​

Mathematics
1 answer:
konstantin123 [22]3 years ago
6 0

Answer:

1)0.123( bar on 3)

Let X = 0.123 ( bar on 3)

Then X = 0.1233 --------(1)

Multiply equation (1) by 100 we get,

100X = 12.33 --------(2)

Again multiply equation (2) by 10 we get,

1000X = 123.33 -------(3)

Subtract equation (2) from equation (3) we get,

1000X = 123.33

100X = 12.33

____________

900X = 111

X = 111/900

Hence,

0.123 ( bar on 3) is in the form of 111/900 which is in the form of P/Q.

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3 years ago
$700 is invested at 4% per annum. How long will it take for the amount to reach $784?​
Blababa [14]

Answer:

3yrs

Step-by-step explanation:

Given parameters:

Capital = $700

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Unknown:

Time it will take for amount to be  = $784

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To find the simple interest on an amount;

        I = \frac{PRT}{100}

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T is the time

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        I  = \frac{700x 4 x T}{100}

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