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3 years ago

How many hours of sleep do most people need to function properly?

Mathematics

1 answer:

Juliette [100K]3 years ago

8 0

Answer:

Step-by-step explanation:

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Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. If $S\%$ of the total legs belong to spi

Alex_Xolod [135]

Answer: 25

Step-by-step explanation:

Since, Total creepy-crawly creatures = 20

Out of which 80% are flies and 20% are spiders,

Thus, the total flies = 80% of 20 = 16

And, The total spiders = 20% of 20 = 4

Also, we know that the number of legs of a spider = 8,

⇒ Total legs belong to spiders out of 20 creepy-crawly creatures = 4×8 = 32

Again, the number of legs of a fly = 6

Thus, the total legs belong to flies out of 20 creepy-crawly creatures = 6×16 = 96

Hence, Total legs = 32 + 96 = 128

$\text{ The percentage of legs that belongs to spider} = \frac{ \text{ Number of legs of 8 spiders}}{\text{ Total legs}}\times 100$

$= \frac{32}{128} \times 100$

$= \frac{3200}{28}$

$= 25\%$

7 0

3 years ago

If you get this right I will mark you as a brainliest

Vsevolod [243]

Ans=D
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3 years ago

HELP!! Complete the ratio table. 13 15 26 _ 45 _ 60 _ 65 75

sladkih [1.3K]

Answer:

30,52,69

Step-by-step explanation:

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3 years ago

F(x) = x2 - 8x - 20 What is the axis of symmetry, vertex, and y intercept

igor_vitrenko [27]

1. vertex is -4 because:

x^2-8x-20,

a=1, b=-8 , c=-20

use vertex form! -b/2a = -8/2(1) = -8/2 = -4.

2. axis of symmatry is the x which is also -4. The same steps go for the second one.

3. y intercept, I think the answer is -20. Im not sure for this one.

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3 years ago

Please help: 3/4 of 24 cm

anzhelika [568]

Answer:

Step-by-step explanation:

24*.75=18

6 0

3 years ago

Read 2 more answers