3 years ago

Please help me out I really need theese answers

Mathematics

1 answer:

bonufazy [111]3 years ago

8 0

Answer:

Step-by-step explanation:

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Is the sum of an odd number and an even number, even?

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Answer:

No.

Step-by-step explanation:

Any even number plus any odd number will always be odd.

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For the past three months Grace used her cell phone for 43 minutes 62 minutes and 57 minutes how many minutes would you have to

RSB [31]

Answer:

Grace should use her phone for 58 minutes to maintain an average of 55 minutes.

Step-by-step explanation:

Usage of first month = 43 minutes

Second month = 62 minutes

Third Minutes = 57 minutes

Let, the usage of fourth month = k minutes

Mean of the data = 5 minutes

Now, Average of a Data = $\frac{\textrm{Sumof observations}}{\textrm{Total number of observations}}$

⇒ $55 = \frac{43 + 62 + 57 + k}{4}$

or, 55 x 4 = 162 + k

⇒ 220 - 162 = k

or, k = 58 minutes

So, Grace should use her phone for 58 minutes to maintain an average of 55 minutes.

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3 years ago

A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as ed

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The publisher makes (22.75 -12.00) = 10.75 per book, so to cover the 21,499 fixed cost, must sell
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Sales revenue will equal production costs when the publisher produces and sells 2000 books.

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You drive in a car for 4.5 hour at an average speed 70 miles per hour. How far did you go?

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Answer:

315 hours

Step-by-step explanation:

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Which of the following shapes is a convex nonagon?<br> OA)<br> OB)<br> OC)<br> OD)

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