3 years ago

The table below shows the amount of money, in hundreds of dollars, Elliot has saved after different numbers of years:

Mathematics

1 answer:

Ulleksa [173]3 years ago

4 0

A is the correct answer.

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Mariabella was 1/4 of the way through her book. Twenty pages later she was 1/3 of the way through her book. When she is 3/4 of t

Alex777 [14]

Answer: 60 pages left.

Step-by-step explanation:

Let the number of pages in the book be x.

As per given, we have

$\dfrac14x+20=\dfrac13x\\\\\Rightarrow\ \dfrac{1}{3}x-\dfrac14 x=20\\\\\Rightarrow\ \dfrac{4-3}{12}x=20\\\\\Rightarrow\ \dfrac1{12}x=20\\\\\Rightarrow x=20\times12\\\\\Rightarrow x=240$

$\dfrac34$ of total book = $\dfrac34\times 240=180$

Pages left = 240-180

= 60

Hence, 60 pages left.

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prisoha [69]

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Step-by-step explanation:

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What is the 5th term of the geometric sequence -2,-8, -32, -128, ...?

Y_Kistochka [10]

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Step-by-step explanation:

The common ratio is multiplying by 4, therefore 4 muliplyed by -128 is -512

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y = 3/2x is the answer for this problem.

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