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Ahat [919]
3 years ago
12

If i walk 2 block in 15 minutes what will my speed be?

Mathematics
2 answers:
Liula [17]3 years ago
7 0

Answer:

That means you walked 1 block in 7.5 minutes

Step-by-step explanation:

Divide 15/2 and that gives 7.5.

We can not find the speed unless if we are given the distance of the blocks but we can find the unit rate....

Art [367]3 years ago
3 0

Answer:

Your answer would be 6mph.

Step-by-step explanation:

Calculate your running or walking speed, distance, or time with Verywell's ... You may also need to know your pace when registering for an event or race such as a ... A pace may not be a round number of minutes, in which case you will need to ... Running 6 miles in 1 hour: 6 / 1 = 6 miles per hour (mph);

(Got it from google)

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20 points Return to questionItem 4Item 4 20 points Police records in the town of Saratoga show that 13 percent of the drivers st
Sladkaya [172]

Answer:

a) 0.1423

b) 0.2977

c) 0.56

Step-by-step explanation:

For each driver stopped for speeding, there are only two possible outcomes. Either they have invalid licenses, or they do not. The probability of a driver having an invalid license is independent from other drivers. So we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

13 percent of the drivers stopped for speeding have invalid licenses.

This means that p = 0.13

14 drivers are stopped

This means that n = 14

(a) None will have an invalid license.

This is P(X = 0)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{14,0}.(0.13)^{0}.(0.87)^{14} = 0.1423

(b) Exactly one will have an invalid license.

This is P(X = 1)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{14,1}.(0.13)^{1}.(0.87)^{13} = 0.2977

(c) At least 2 will have invalid licenses.

Either less than 2 have invalid licenses, or at least 2 does. The sum of the probabilities of these events is decimal 1. Mathematically, this is

P(X < 2) + P(X \geq 2) = 1

We want P(X \geq 2)

So

P(X \geq 2) = 1 - P(X < 2)

In which

P(X < 2) = P(X = 0) + P(X = 1) = 0.1423 + 0.2977 = 0.44

P(X \geq 2) = 1 - P(X < 2) = 1 - 0.44 = 0.56

8 0
3 years ago
(6x + 7) - (9x + 9) simpilest form pls
My name is Ann [436]

Answer:

-3x+16

Step-by-step explanation:

7 0
3 years ago
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Find the slope of a line perpendicular to 2x-y-16
Alekssandra [29.7K]

put the equation 2x - y = 16 in the form of y = mx + c

2x - y = 16

2x = 16 + y

y = 2x - 16

the slope of this line is 2. the slope of a line perpendicular to it would be the negative reciprocal of 2. in other words, it would multiply with 2 to give -1.

you can form this equation with that info

2x = -1

x = -1/2

OR

you can flip and change the sign (numerator) of 2/1

2/1

= -1/2

6 0
3 years ago
Somebody help please
Goryan [66]

Answer:

C

Step-by-step explanation:

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3 years ago
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Which answer shows the FOIL method?
scoundrel [369]

Answer C

hope this helps :)

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