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Cerrena [4.2K]
3 years ago
11

I need help with 3/9-1/10 in fractions

Mathematics
1 answer:
mars1129 [50]3 years ago
4 0

7/30

Step-by-step explanation:

convert them to a common denominator by multiplying top and bottom to have a common denominator of 90. It becomes 30/90-9/90. Then you get 21/90 which reduces to 7/30.

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Which of the following statements is true about an image after a dilation?
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Step-by-step explanation:

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6 0
3 years ago
Mr. Akika has 49 21 cent and 31 cent stamps all told. The stamps are worth $13.39. how many of each kind of stamps does he have?
Lana71 [14]

Mr Akika has 18  21-cent stamp and 31 31-cent stamp.  

He has 49 21-cent and 31-cent stamps all told.

let

x = number of 21 cent stamp

y = number of 31 cent stamp

Therefore,

<h3>Total number of stamp:</h3>
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<h3>Total cost of stamp:</h3>
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Therefore,

x + y = 49

21x + 31y = 1339

21x + 21y = 1029

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y = 310 / 10

y = 31

Therefore,

x = 49 - 31

x = 18

Therefore, Mr Akika has 18  21-cent stamp and 31 31-cent stamp.  

learn more on system of equation: brainly.com/question/1369852?referrer=searchResults

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