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iris [78.8K]
3 years ago
11

Twenty-one is 25% of

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
5 0
21 is 25% of 84

21 • 4 = 84

You can check this answer by take 25% of 84.

84 • 0.25 = 21
Delicious77 [7]3 years ago
3 0

Answer:

Twenty-one is 25% of 84 .

Step-by-step explanation:

Formula

Percentage = \frac{Part\ value\times 100}{Total\ value}

As given

Part value = 21

Percentage = 25%

Put all the values in the formula

25= \frac{21\times 100}{Total\ value}

25= \frac{2100}{Total\ value}

Total\ value = \frac{2100}{25}

Total value = 84

Therefore Twenty-one is 25% of 84 .

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Lena [83]

Answer:

D. 127.5 square units

Step-by-step explanation:

AC=17

BD=15

AB=11.5

Diagonal (1&2) are given, base of the rhombus is also given.

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Area of a rhombus given the diagonals

=1/2×d1×d2

Where,

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d2=BD=15

Area of a rhombus=1/2×d1×d2

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=127.5

D. 127.5 square units

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