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Dahasolnce [82]
2 years ago
5

An Olympic swimmer can swim 50 meters in 21 seconds. How long would it take the swimmer to swim 800 meters if he kept up the sam

e pace?
Mathematics
1 answer:
ICE Princess25 [194]2 years ago
7 0

Answer:

It would take 336 seconds

Step-by-step explanation:

Set up as a proportion:

50 meters/21 seconds = 800 meters/x

Then we cross multiply to find the answer:

336 = x

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Answer:

  • 100 minutes

Solution:

<u>We know that:</u>

  • Capacity = 2,500 gallons
  • Hose = 25 gallons/minute

Solution:

  • 25 gallons = 1 minute
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  • => 25x = 2500
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Hence, it will take 100 minutes to fill the pool.

4 0
2 years ago
A New York Times/CBS poll surveyed 1,027 adults nationwide about race relations in the United States. Of the sample, 61% respond
Naddik [55]

The interpretation is that we are 95% confident that the true population proportion p is somewhere between 0.58 and 0.64

The population proportion p in this case refers to the proportion of people who feel that race relations in this country are generally bad.

Something like 0.58 converts to 58% when you move the decimal point 2 spots to the right.

5 0
2 years ago
What is the area of this square?
bogdanovich [222]

Answer:

6.25 mm squared

Step-by-step explanation:

Because if you multiply 2.5 by 2.5 you get 6.25. To find the area of a square you multiply the two sides its the same as a rectangle.

8 0
3 years ago
a fish tank at a pet store has 8 zebra fish in how many different way s can nikki choose 3 zebra fish to buy
liraira [26]
This is 8C3.
8!/5!3!=8X7X6/3X2X1=56 ways
6 0
3 years ago
Read 2 more answers
What’s the correct answer for this?
Mashutka [201]

Answer:

E:

Step-by-step explanation:

The equation of circles is

(x-a)²+(y-b)²=r²

Where

Center = (a,b) = (-6,-3) and r = 12

Now

The equation becomes

(x+6)²+(x+3)²=144

4 0
2 years ago
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