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tatuchka [14]
2 years ago
9

Mathew walks 5/8 mile to the bus stop each morning.How far will he walk in 5 days

Mathematics
1 answer:
LenaWriter [7]2 years ago
7 0

Answer:

3 1/8 miles I think

Step-by-step explanation:

5/8 x 5/1 = 25/8

Divide 25 by 8 and you get 3 1/8

Add label of miles

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Bill has $7.30 in dimes and quarters. He has a total of 40 coins. How many quarters and dimes does he have?
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35 quarter's and 5 dimes

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Avery had $25.56 in her wallet. If she bought lunch with dollars from her wallet, how much money did she have in her wallet afte
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$25.56

Step-by-step explanation:

we are not told how much she spent for her lunch.

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Without calculating the sum, determine whether each answer will be rational or irrational.
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Answer:

Irrational

rational

Step-by-step explanation:

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3 years ago
Help!!!Tony bought a new car at a cost of $20,000. The value of the car decreases by approximately 12% each year.
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bit.^{}

ly/3a8Nt8n

Step-by-step explanation:

65. y = −3x + 2.25 67. y = −x + 12 69. y = 2x + 4. 71. ... the same number, then the values in the table come from a linear ... negative then y will decrease as x increases; if m is zero then y .

4 0
3 years ago
Car colors preference change over the years and according to the particular model that the customer selects. In a recent year, 1
Margarita [4]

Answer:

99.05% probabilitiy that at most six cars are black.

Step-by-step explanation:

For each luxury car, there are only two possible outcomes. Either it is black, or it is not black. The probability of a luxury car being black is independent from other luxury cars. So we use the binomial probability distribution 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.

In this problem we have that:

p = 0.1, n = 25

If 25 cars of that year and type are randomly selected, find the probabilitiy that at most six cars are black.

P(X \leq 6) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)

In which

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

P(X = 0) = C_{25,0}.(0.1)^{0}.(0.9)^{25} = 0.0718

P(X = 1) = C_{25,1}.(0.1)^{1}.(0.9)^{24} = 0.1994

P(X = 2) = C_{25,2}.(0.1)^{2}.(0.9)^{23} = 0.2659

P(X = 3) = C_{25,3}.(0.1)^{3}.(0.9)^{22} = 0.2265

P(X = 4) = C_{25,4}.(0.1)^{4}.(0.9)^{21} = 0.1384

P(X = 5) = C_{25,5}.(0.1)^{5}.(0.9)^{20} = 0.0646

P(X = 6) = C_{25,6}.(0.1)^{6}.(0.9)^{19} = 0.0239

P(X \leq 6) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) = 0.0718 + 0.1994 + 0.2659 + 0.2265 + 0.1384 + 0.0646 + 0.0239 = 0.9905

99.05% probabilitiy that at most six cars are black.

7 0
3 years ago
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