1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erik [133]
3 years ago
6

In a class of 20 students 3/5 are boys. If 4 more boys join the class, what fraction of the class are boys now?

Mathematics
2 answers:
cupoosta [38]3 years ago
6 0

if 4 more boiiz join the class it will be 2/5

IgorLugansk [536]3 years ago
6 0

Answer:

2/3 of the class is now boys

Step-by-step explanation:

If you start with 3/5 of 20 is boys that would mean there were 12 boys. If you add 4 more that makes it 16/24 and you can simplify that fraction to 4/6 and simplified even further is 2/3.

You might be interested in
In one or two sentences briefly describe the functions of the structures of the immune system:
CaHeK987 [17]
Answer is F because of bones
4 0
1 year ago
Read 2 more answers
List the constant(s) in the following expression:<br><br><br><br> 4c - r + 3
sukhopar [10]
The constant is 3.

In mathematics, a constant term is a term in an algebraic expression that has a value that is constant or cannot change, because it does not contain any modifiable variables.
5 0
3 years ago
Read 2 more answers
The difference of the square of a number and 40 is equal to 3 times that number. Find the positive solution.
Wewaii [24]

Answer: The answer is 8.

Step-by-step explanation: The first step is to convert the expression into figures. We shall call the unknown number Y. So if we are told “the square of a number,” that means Y squared, or better still, Y^2. Further we are told “the difference between the square of a number and 40” and that can be written as;

Y^2 - 40.

Next we are told that this expression is equal to 3 times that number (that is 3Y). That can now be written out as follows,

Y^2 - 40 = 3Y

If we move all expressions to one side of the equation, what we would have is,

Y^2 - 3Y -40 = 0

(Remember that when a positive value crosses to the other side of an equation it becomes negative and vice versa)

We now have a quadratic equation

Y^2 -3Y - 40 = 0

By factorizing we now have

(Y -8) (Y + 5) = 0

Therefore Y - 8 = 0 or

Y + 5 = 0

Hence, Y = 8 or Y = -5

Since we are asked to calculate the positive solution, Y = 8

5 0
3 years ago
Help me please , Write the slope intercept of the given line, provide the submit solution
Dmitry [639]

Answer:

y=1/3x + 2

Step-by-step explanation:

the y intercept is 2 since that's where the line crosses and the x intercept is at 4

6 0
2 years ago
Based on the graphs of f (x) and g(x), what must the domain of (f ⋅ g)(x) be?
bekas [8.4K]

Using the concept of domain, the domain of (f.g)(x) is given by:

{x ∈ ℝ | x ≠ 3}

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

  • The domain of a function is given by all possible input values, that is, <u>on a graph, all values that the x-axis assumes.</u>
  • In the graph, <u>function f assumes all real values.</u>
  • Function g is not defined for x = 3, thus, it's domain is all real values except 3.
  • Thus, the multiplication, as fg(x) = f(x) \times g(x), will also not be defined at x = 3, and the domain of the multiplication is:

{x ∈ ℝ | x ≠ 3}

A similar problem is given at brainly.com/question/4175434

4 0
3 years ago
Other questions:
  • I don't understand how to do this
    14·1 answer
  • An employees working at an electronic store earned $3582 for working 3 months during the summer. What did the employee earn for
    14·1 answer
  • Jackie's dogs are play fighting with their toys. They have a total of 10 toys, 5 of which are red. Jackie sees one of her dogs h
    12·2 answers
  • Evaluate the following expression when n = -7.<br><br> -9|n + 5|
    11·1 answer
  • A private club was reduced by 27 members in 3 weeks. Its size changed by the same number of members each week. What was the chan
    8·1 answer
  • A point has the coordinates (0,k).
    11·1 answer
  • What are the next two terms in the sequence 16, 13, 10,_,__?
    7·1 answer
  • What is the solution for the systems of equations below?
    15·1 answer
  • Please help I feel like I am dying
    6·1 answer
  • Find the length of the third side. If necessary, write in simplest radical form.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!