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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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Find the range of y = -3x + 7 for the domain {-8, -6, -3, -2, 2}
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The domain is the set of x-values of a function. The range is the set of y-values of a function.

You are told that the domain, or x-values, are -8, -6, -3, -2, and 2. To find the range, you just need to plug in each of the x-values into the function <span>y = -3x + 7 and find the value of y.
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2) When x = -6
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y = -3(-6) + 7
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4) When x = -2
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y = -3(-2) + 7
y = 6 + 7
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5) When y = 2
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y = -3(2) + 7
y = -6 + 7
y = 1

The range is {31, 25, 16, 13, 1}.

-------

Answer: 
{31, 25, 16, 13, 1}
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