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saw5 [17]
2 years ago
8

21 is 75% percent of what number?

Mathematics
2 answers:
Gekata [30.6K]2 years ago
7 0

Answer:

28

Step-by-step explanation:

21 is 75% percent of 28!

I hope this helps <3

Pepsi [2]2 years ago
7 0

Answer:

28

Step-by-step explanation:

i don't know how to explain it exactly

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The diagram shows a 5 cm x 5 cm x 5 cm cube.
Nitella [24]

Answer:

8.7 cm

Step-by-step explanation:

The question is a 2-two-step Pythagoras theorem. (c^2 = a^2 + b^2)

Consider as such, If I were to draw a diagonal line along the base of the cube what is the length of the diagonal line. To find out that we use the theorem. We can substitute a for 5 and b for 5 as well. So

a^2 +b^2 = c^2

5^2 + 5^2 = c^2

25 + 25 = c^2

√50 = c

Then since the line side of the cube is on a 3d angle we need to do the same process again but now using the imaginary diagonal line that we just calculated and the height (5).

a^2 +b^2 = c^2

√50^2 + 5^2 = c^2

50 + 25 = c^2

√75 = c

c = 8.6602...

<em>when rounded to 1 d.p.</em>

c = 8.7

Line AB is 8.7 cm long.

7 0
3 years ago
40 - 2x [(8 x 3 + 6) +<br>12 -2 pls answer correctly​
Degger [83]

Answer:

40 is the answer . is it right or Not?

3 0
2 years ago
Read 2 more answers
Find the measure of each angle of the triangle HIJ. There will be three answers. (Hint: find the value of x first.)
vekshin1
<h3><em>= 3x - 2 + 3x - 9 + 4x - 9 = 180 ( Angle sum property )</em></h3><h3><em>= 3x + 3x + 4x - 2 - 9 - 9 = 180 </em></h3><h3><em>= 10x - 20 = 180 </em></h3><h3><em>= 10x = 180 + 20 </em></h3><h3><em>= 10x = 200</em></h3><h3><em>= x = 200 / 10 </em></h3><h3><em>= x = 20</em></h3><h3><em>therefore the angle's are,</em></h3><h3><em>58, 51, 71.</em></h3><h3><em>HOPE IT HELPS !!!</em></h3>
6 0
2 years ago
5x + 7y = -29, y = x + 1
Afina-wow [57]

Answer:d

Step-by-step explanation:

6 0
2 years ago
Plz help me thank you!!!!!!
damaskus [11]

Answer:

h = 9.674

Step-by-step explanation:

8 0
3 years ago
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