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larisa86 [58]
3 years ago
7

A city has 4 new houses for every 9 old houses. If there are 28 new houses in the city, how many old houses are there?

Mathematics
2 answers:
Ratling [72]3 years ago
5 0
The answer is B because 4 X 7 is 28 so 9 times 7 is 63
Ludmilka [50]3 years ago
5 0
The answer is 63, hope this helps
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What is the sum1,000+2,000=
Valentin [98]

Answer:

3000

Step-by-step explanation:

1000 + 2000 = 3000

4 0
3 years ago
Pls help
Juli2301 [7.4K]

Answer:

I believe the answer is 540* because

Step-by-step explanation:

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3 years ago
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Pam and her brother both open savings accounts. Each begin with a balance of zero dollars. For every two dollars that Pam save i
dezoksy [38]

Answer:

Ratio [Pam to her brother] = 2:5

Step-by-step explanation:

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Her brother saves fives dollar (For every two dollar)

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Ratio [Pam saving and his brothers saving]

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6 0
3 years ago
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kari74 [83]

Answer:

M is not parellel to N because they do not create supplementary angles with the lines that it passes through.

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Step-by-step explanation:

8 0
2 years ago
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We draw 2 cards from a deck of 52 cards. what is the probability that both are queens?
solniwko [45]
Use combination
There are 4 queen cards in a deck of 52 cards
Probability = 4C2 / 52C2

I calculate 4C2 first
4C2 = 4! / (2! 2!)
4C2 = (4 × 3 × 2 × 1) / (2 × 1 × 2 × 1)
4C2 = 6

Then I calculate 52C2
52C2 = 52! / (50! 2!)
52C2 = (52 × 51)/2
52C2 = 1.326

Hence, the probability is
Probability = 4C2 / 52C2
Probability = 6/1,326
Probability = 1/221
7 0
2 years ago
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