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Shkiper50 [21]
2 years ago
8

You pick a card at random. What is P(even or prime)? Write your answer as a percentage.

Mathematics
2 answers:
almond37 [142]2 years ago
4 0

Answer:

p is prime (p=prime) it just makes scence

BlackZzzverrR [31]2 years ago
3 0

Answer:

%50

Step-by-step explanation:

The probability that you will get any of the cards it 50/50. There are even amount of cards, two have even numbers and two have prime numbers. 3 and 5 are primes, and 4 and 6 are even.

So the chances that you get an even or a prime number is 50%.

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

I hope this helps!

-No one.

p.s I did not make up this answer, as this is the math that I did myself. I am putting this notice here in the case someone tries to say that I made this up, like previous answers I have put, although they were the correct answers.

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{4x-2y+5z=6 <br> {3x+3y+8z=4 <br> {x-5y-3z=5
lesya692 [45]

There are three possible outcomes that you may encounter when working with these system of equations:


  •    one solution
  •    no solution
  •    infinite solutions

We are going to try and find values of x, y, and z that will satisfy all three equations at the same time. The following are the equations:

  1. 4x-2y+5z = 6
  2. 3x+3y+8z = 4
  3. x-5y-3z = 5

We are going to use elimination(or addition) method

Step 1: Choose to eliminate any one of the variables from any pair of equations.

In this case it looks like if we multiply the third equation by 4 and  subtracting it from equation 1, it will be fairly simple to eliminate the x term from the first and third equation.

So multiplying Left Hand Side(L.H.S) and Right Hand Side(R.H.S) of 3rd equation with 4 gives us a new equation 4.:

4. 4x-20y-12z = 20      

Subtracting eq. 4 from Eq. 1:

(L.HS) : 4x-2y+5z-(4x-20y-12z) = 18y+17z

(R.H.S) : 20 - 6 = 14

5. 18y+17z=14

Step 2:  Eliminate the SAME variable chosen in step 2 from any other pair of equations, creating a system of two equations and 2 unknowns.

Similarly if we multiply 3rd equation with 3 and then subtract it from eq. 2 we get:

(L.HS) : 3x+3y+8z-(3x-15y-9z) = 18y+17z

(R.H.S) : 4 - 15 = -11

6. 18y+17z = -11

Step 3:  Solve the remaining system of equations 6 and 5 found in step 2 and 1.

Now if we try to solve equations 5 and 6 for the variables y and z. Subtracting eq 6 from eq. 5 we get:

(L.HS) : 18y+17z-(18y+17z) = 0

(R.HS) : 14-(-11) = 25

0 = 25

which is false, hence no solution exists



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2 years ago
Evaluate the function.
RSB [31]
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Answer:

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Step-by-step explanation:

Use a conversion factor from km to miles while keeping track of your units:

70 km/hr x 0.62 miles/km = 43 miles/hr

4 0
3 years ago
People's movements between places is called
pogonyaev

Answer:

The three answers I can think of are migration, immigration, and emigration.

Step-by-step explanation:

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