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3 years ago

6

Nora had already read thirty percent of the book before he teacher assigned it to the class she is choosing between two options.

option1:read 25%of the remaining pages each night or option2:read 28pages each night

2 answers:

kompoz [17]3 years ago

5 0

I need some points so I put this

gtnhenbr [62]3 years ago

4 0

Choosing option 1 will take 3 nights.

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Black_prince [1.1K]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

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kondaur [170]

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2 years ago

Perform the following calculations without rewriting the numbers in decimal form.

RSB [31]

Answer:

Answer will be $140\times 10^{13}$

Step-by-step explanation:

We have to perform the calculation $(1.42\times 10^{15}-2\times 10^{13})$ without changing into decimal

$1.42\times 10^{15}$ can be written as $142\times 10^{13}$

So $1.42\times 10^{15}-2\times 10^{13}=(142\times 10^{13}-2\times 10^{13})$

Now taking $10^{13}$ common

$10^{13}(142-23)=140\times 10^{13}$

6 0

3 years ago