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Lubov Fominskaja [6]
3 years ago
6

At a certain high school, 25 students play only stringed instruments, 15 students play only brass instruments, and 5 students pl

ay both. There are also 5 students who play neither stringed nor brass instruments. What is the probability that a randomly selected student plays both a stringed and brass instrument?
Mathematics
1 answer:
Oksana_A [137]3 years ago
3 0

Answer:

1/10

Step-by-step explanation:

First, let's find the total number of students (25+15+5+5). We don't need to worry about them overlapping, as the questions says "only." We get the total of 50.

Out of the 50 students, there are 5 students that play both instruments. This means that 5 is our numerator and 50 is our denominator, giving us 5/50 or 1/10.

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Help ASAP!!!<br> Worth 30 points!!!
sladkih [1.3K]

2m+22


I hope this helped!
4 0
3 years ago
Read 2 more answers
Mrs. Stevenson wants to split her class into 4 teams: Team A, Team B, Team C, and Team D. There are 28 students in her class. To
olga_2 [115]
The probability that both of the students are on Team D is about 5.56%

There are 4 teams, so the first person has a 1/4 chance of being on Team D.

However, for the second person, there are only 6 spots left out of 27 to be on Team D.

To find the combined probability, we need to multiply the two fractions.

1/4 times 6/27 = 1/18 or about 5.56%
3 0
3 years ago
Calculate the principal if the maturity value is $4,500 and the simple interest is $350.
suter [353]

Answer:

The principal is $4,150.

Step-by-step explanation:

We have to find the principal if the maturity value is $4,500 and the simple interest is $350.

<u>As we know that the formula for calculating the final amount or maturity amount is given by;</u>

Amount = Principal + Interest

Here, Simple interest = $350

Amount or Maturity value = $4,500

So, the Principal = Amount - Interest

Principal = $4,500 - $350

               = $4,150

Hence, the principal if the maturity value is $4,500 and the simple interest is $350 is $4150.

4 0
3 years ago
Could somebody help me with this please? i forgot how to do these.
goblinko [34]
Since a full circle has 360degrees and this circle only has two angles, subtract the arc of the known angle to find the arc of the unknown angle.

Angle DGF + angle DEF= 360degrees

Angle DGF + 70degrees= 360 degrees

Angle DGF = 290 degrees

The arc of the unknown angle is 290 degrees
4 0
3 years ago
How does the graph of g(x) = −(x + 3)^4 compare to the parent function of f(x) = x^4
kotykmax [81]

Answer: Option D

g(x) is shifted 3 units to the left and reflected over the x-axis.

Step-by-step explanation:

If we have a main function f (x) = x ^ 4

And we perform the transformation:

g (x) = f (x + h) = (x + h) ^ 4

Then it is fulfilled that:

If h> 0 the graph of f(x) moves horizontally h units to the left

If h the graph of f(x) moves horizontally h units to the right

If we have a main function f (x) = x ^ 4

And we perform the transformation:

g (x) = -f(x) = -x ^ 4

Then it is fulfilled that:

The graph of g(x) is equal to the graph of f(x) reflected on the x axis

In this case we have to:

g(x) = -(x + 3)^4 and f(x) = x^4

Therefore h=3>0 and g(x) = -f(x)

This mean that: g(x) is shifted 3 units to the left and reflected over the x-axis.

6 0
3 years ago
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