a sprinter runs 400 meters in 54 seconds. What is the runner's average running rate in meter's per second?

Mathematics

2 answers:

gayaneshka [121]3 years ago

4 0

You make a proportion. 400/54=x/1
multiply across:
400x=54
Divide by 400:
x=54/400
Answer= 0.135 seconds per meter

charle [14.2K]3 years ago

3 0

7.407407407407407... (it repeats the 407)
U just had to divide 400 by 54

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Define adult and student tickets
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Let the number of adult tickets be x
Adult tickets = x
Student tickets = x + 69

------------------------------------------
Form equation and solve for x
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x + x + 69 = 569
2x + 69 = 569 ← Combine like terms
2x = 569 - 69 ← Subtract 69 from both sides
2x = 500
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Find the number of adult tickets and student tickets
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Adult tickets = x = 250
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Answer: Adult tickets = 250 ; Student tickets = 319
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