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aleksandr82 [10.1K]
3 years ago
15

What is x divided by 3 plus 2 divided by 5 equals one over fifteen

Mathematics
1 answer:
dolphi86 [110]3 years ago
6 0

x/3 + 2/5 = 1/15

x/3 = 1/15 - 2/5

x/3 = 1/15 - 6/15

x/3 = -5/15

x = (-1/3) * 3

x = -1

Answer: x = -1

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Ms.Hill travels 2400 miles at a rate of 400 miles per day to visit her grandchildren. How many days will it take to complete the
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For this question, you just divide 2400 by 400 and get how many days it'll take! which, is 6
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Two part-time instructors are hired by the Department of Statistics and each is assigned at random to teach a single course in p
scZoUnD [109]

Answer:

The probability that they will teach different courses is \frac{2}{3}.

Step-by-step explanation:

Sample space is a set of all possible outcomes of an experiment.

In this case we will write the sample space in the form (x, y).

Here <em>x</em> represents the course taught by the first part-time instructor and <em>y</em> represents the course taught by the second part-time instructor.

Denote every course by their first letter.

The sample space is as follows:

S = {(P, P), (P, I), (P, S), (I, P), (I, I), (I, S), (S, P), (S, I) and (S, S)}

The outcomes where the the instructors will teach different courses are:

s = {(P, I), (P, S), (I, P),(I, S), (S, P) and (S, I)}

The probability of an events <em>E</em> is the ratio of the number of favorable outcomes to the total number of outcomes.

P(E)=\frac{n(E)}{N}

Compute the probability that they will teach different courses as follows:

P(\text{Different courses})=\frac{n(s)}{n(S)}=\frac{6}{9}=\frac{2}{3}

Thus, the probability that they will teach different courses is \frac{2}{3}.

3 0
3 years ago
1) Enter the value of n that makes the equation 4^6• 4^n= 4^9 true.
Maslowich
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Lyrx [107]

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To solve this problem, we need to think creatively:

A fraction is made up of a numerator and denominator.

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The numerator can be any number;

since the solution of our fraction must be greater than 1, this implies that the numerator must higher than the denominator.

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since the solution must be less than 2, the value lies between 1 and 2.

The solution to the problem is \frac{4}{3} and  \frac{5}{3}

learn more:

fraction brainly.com/question/1757979

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lora16 [44]

Answer and Step-by-step explanation:

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