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Liono4ka [1.6K]
3 years ago
12

If t\4 +t =15 what is t​

Mathematics
1 answer:
yanalaym [24]3 years ago
4 0

Answer:

need points im really sorry

Step-by-step explanation:

jk mate its 3.75

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Answer:

Someone who walks 60 feet in 10 seconds

Step-by-step explanation:

It takes someone else 5 seconds to walk 25 feet.

25 feet x 2 is 50 feet.

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That means that person is walking 50 feet per second, and 50<60.

I hope this helps!

4 0
3 years ago
The average score on a standardized test is 750 points with a standard deviation of 50 points. What is the probability that a st
nalin [4]
The probability that student scored more than 850 we shall proceed as follows:
z=(x-μ)/σ
where:
x=850
μ=750
σ=50
thus
z=(850-750)/50
z=2
thus
P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228

Answer: P(x>850)=0.0228
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