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Andrews [41]
3 years ago
15

Ariana's family took a road trip to the Grand Canyon. Ariana fell asleep 65% of the way through the trip. If Ariana fell asleep

after they had travelled 650 miles, what was the total length of the trip?
Mathematics
1 answer:
Anvisha [2.4K]3 years ago
5 0

Answer:

1000 miles

Step-by-step explanation:

650 ÷ 65 = 10

10 × 100 = 1000

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Two corporate baseball teams are scheduled to play a game together. They agree that if both teams attend or if neither team atte
sp2606 [1]

Answer:

2.99% probability that the cost will be paid by only one team

Step-by-step explanation:

The binomial probability distribution is used to solve this question.

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.

Probability that a team plays:

A team plays if it has at most 2 injured players out of 11.

11 players, so n = 11

Each player with a 5% probability of injury, so p = 0.05

Then

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2)

In which

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

P(X = 0) = C_{11,0}.(0.05)^{0}.(0.95)^{11} = 0.5688

P(X = 1) = C_{11,1}.(0.05)^{1}.(0.95)^{10} = 0.3293

P(X = 2) = C_{11,2}.(0.05)^{2}.(0.95)^{9} = 0.0867

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.5688 + 0.3293 + 0.0867 = 0.9848

Each team has a 0.9848 probability of showing up to play.

What is the probability that the cost will be paid by only one team?

This happens if one team shows up and the other do not.

2 teams, so n = 2

Each team has a 0.9848 probability of showing up to play, so p = 0.9848.

This probability is P(X = 1).

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

P(X = 1) = C_{2,1}.(0.9848)^{1}.(0.0152)^{1} = 0.0299

2.99% probability that the cost will be paid by only one team

7 0
4 years ago
7TH GRADE MATH!!! NEED ASAP
olganol [36]

Answer:

second choice

Step-by-step explanation:

4 0
3 years ago
Which are vertical angles?<br> O AFE and BFD<br> O BFC and DFE<br> O AFE and CFD<br> O BFC and EFA
mel-nik [20]

the correct answer is a, because a vertical angle is made of 2 intercepting lines.

3 0
3 years ago
What is a direct variation relationship?
kotegsom [21]

Answer:

direct variation has no constant and x is on top

EX:

y=5x/4 or y=4x or y/3=x

3 0
3 years ago
Read 2 more answers
How is this written : Five less a number is equal to twenty
Alika [10]

[ Answer ]

\boxed{\bold{N \ - \ 5 \ = \ 20}}

[ Explanation ]

  • How Is This Written: Five less than a number is equal to twenty

-----------------------------------------

  • What We Know:
  • Less Than Is Subtraction
  • N is more than 5

5 Less Than N

N - 5

Is Equal To Twenty

N - 5 = 20

\boxed{\bold{[] \ Eclipsed \ []}}

8 0
3 years ago
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