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muminat
3 years ago
11

ron walks 0.5miles on the track in 10 minutes steve walks 0.25miles on the track in 6 minutes find the unit rate for each Walker

mile per hour who is the faster walk
Mathematics
2 answers:
Oksanka [162]3 years ago
8 0
0.5 miles/ 10 minutes* (60 minutes/ 1 hour)= 3 miles/hour.

0.25 miles/ 6 minutes* (60 minutes/ 1 hour)= 2.5 miles/hour.

The unit rate of Ron is 3 miles/hour.
The unit rate of Steve is 2.5 miles/hour.

Therefore, Ron walks faster~
disa [49]3 years ago
3 0
63. Ron walks 0.5 miles on the track in 10 minutes. Steve walks 0.25 miles on the track in 6 minutes. Question : Find the unit rate of each walker and identify who walks faster, Ron => 0.5 miles for 10 minutes => 0.5 miles / 10 minutes = 0.05 miles per minute or 0.05 miles/minute Steve => 0.25 miles in 6 minutes => 0.25 miles / 6 minutes = 0.042 miles per minute or 0.042 miles/minute Thus, Ron walks faster than Steve.
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A game of chance involves spinning a wheel with 4 number on it. The wheel is designed so that the result of each spin Xhas the f
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X : ___ 1 _____ 2 _____ 3 ______ 4

P(x) __0.50 __0.25 __ 0.15 ____ 0.10

Answer:

1.85 ; 1.014 ;` 0.55 ; 3.042

Step-by-step explanation:

Probability distribution :

X : ___ 1 _____ 2 _____ 3 ______ 4

P(x) __0.50 __0.25 __ 0.15 ____ 0.10

The mean: E(x) = Σ(X * p(x))

(1*0.5) + (2*0.25) + (3*0.15) + (4 *0.10)

= 1.85

Standard deviation = sqrt(Var(x))

Var(x) = Σ(x²*p(x)) - E(x)²

Var(x) = ((1^2*0.5) + (2^2*0.25) + (3^2*0.15) + (4^2 *0.10)) - 1.85^2

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= 1.0275

Standard deviation = sqrt(1.0275)

Standard deviation = 1.0136567

Standard deviation(X) = 1.014

3.)

Cost of spin = $5

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y = 3x - cost of playing

y = 3x - 5

E(y) = E(3x - 5)

E(y) = E(3x) - 5

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E(y) = 3(1.85) - 5

E(y) = 0.55

Standard deviation :Sd(y) =

Sd(3x - 5)

3(1.014)

= 3.042

5 0
2 years ago
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