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lutik1710 [3]
3 years ago
13

Mary has postcards and stamps. The ratio of the number of postcards to the number of stamps she has is 2:9. If Mary has 36 stamp

s, how many postcards does Mary have?
Mathematics
1 answer:
Liula [17]3 years ago
8 0

Answer:

8

Step-by-step explanation:

2:9

9*4 = 36

2*4 = 8

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Answer:

multiply by 2

Step-by-step explanation:

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Find the radius of a sphere whose surface area is 154cm².​with stepss
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Answer:

THIS IS YOUR ANSWER:

area \: of \: spere \:  = 4\pi \: r {}^{2}  \\ 154cm {}^{2} = 4 \times  \frac{22}{7}  \times r {}^{2}

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r =  \sqrt{12.25} \\ r = 3.5cm

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Crazy boy [7]
<span>
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3 years ago
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Which of the following is equivalent to 140 centiliters?
Norma-Jean [14]
The answer is C) because one litre=100 centiliters, and one kilolitre=one litre which means that one kilolitre =100000 centiliters
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Solnce55 [7]

Answer:

A = 8

B = 6

C = 4

D = 7

Top = 29

Side = 20

Step-by-step explanation:

To get A on the bottom side row you divide 32 by 4 and get 8.

To get D, on the first side row, subtract A, 8, now it's 21, 21 divided by 3 is 7.

To get B, on the first top row, subtract A and D, now divide by 2 and you get 6.

To get C, on the third side row, subtract B and divide by 2 and you get 4.

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2 years ago
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