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3 years ago

Help me with question !

Mathematics

1 answer:

timurjin [86]3 years ago

3 0

Answer:

Step-by-step explanation:

It is more frequently used to find primes, oddly enough.

Write down the first 25 numbers.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Start with 2. Use your eraser and jump to 4. Erase it because 2 will divide into 4. Leave 5 alone. 2 won't go into 5. But it will into 6. Erase six. Leave 7. Go to 8 and erase it. Leave 9 erase 10. Leave 11. Erase 12. Leave 13. Erase 14. Erase 16,18,20,22,24,26,28,30 all for the same reason. Two will divide into each of them.

Start with 3 can't do anything. 3 stays 6 is gone erase 9 . 12 is gone. Erase 15. 18 is already gone. Erase 21, 24 is gone. Erase 27. 30 is gone already.

Do the same with 5, 7, 11, 13,17,19,23 (you do run out of numbers to erase)

The sieve leaves behind the primes.

Anything you have erased is a composite.

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Step-by-step explanation:

First, find the amount she bakes per minute. It is given that Marissa bakes 30 cookies every 15 minutes, or:

30 cookies/15 minutes = 2 cookies/minute.

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3 years ago

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iogann1982 [59]

Answer:

The dimensions of rectangular table are length = 79 centimeters and width = 261 centimeters.

Step-by-step explanation:

Given:

The perimeter of the rectangular table is 680 centimeters.

Now, to find the dimensions:

Let, the width of rectangular table be $x$

And the length of the table be $24+3x$

Now, putting the formula of perimeter of rectangle to get the dimensions:

Perimeter = 2(length + width)

$680=2(x+(24+3x))$

$680=2(4x+24)$

$680=8x+48$

By subtracting both sides with 48 we get:

$632=8x$

Now, dividing both sides by 8 we get:

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3 years ago

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Answer:

y= 0.25x +3

Step-by-step explanation:

<u>Slope-intercept </u><u>form</u>

y= mx +c, where m is the slope and c is the y-intercept.

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This equation is already in the slope-intercept form, hence we can easily identify its slope from the coefficient of x.

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Thus, the slope of the line is also 0.25.

Substitute m= 0.25:

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To find the value of c, substitute a pair of coordinates.

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