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o-na [289]
4 years ago
13

A marble is drawn at random from the bag shown below. The bag contains 3 green, 4 yellow, 5 blue, and 8 pink marbles.What is the

probability that the marble drawn is a green or blue?
Mathematics
2 answers:
LiRa [457]4 years ago
7 0
Total = 3+4+5+8 = 20
<span>probability that the marble drawn is a green or blue is 8/20 = 2/5</span>
Serhud [2]4 years ago
5 0

3 + 4+ 5+8 = 20 total marbles

3 green  +5 blue = 8 marbles

probability = 8/20 reduces to 2/5

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5x-2y=12<br><br>6x+2y=32<br><br>find the solution
diamong [38]

Answer:

(4,4)

Step-by-step explanation:

There are two ways that you can solve this. You can solve it with the help of technology or you can solve it traditionally. I will show how to do it in both ways so you can pick which way you want to solve it.

<em>Traditional Method:</em>

5x - 2y = 12

6x + 2y = 32

Look at the variables and numbers in both equations. One of them has to be the same value but have to have opposite signs. The 2y in both equations are the same value but have different signs. That's what we want. We can add everything in the equation now. (5x + 6x), (-2y + 2y), and (12 + 32).

11x = 44

To get x alone, Divide each side by 11. Then we will get the value of x.

11/11x = 44/11

x = 4

Horray! We got x, but what about y? Pick one of the equations. I will go with 5x - 2y = 12. Substitute the x value inside the equation.

5(4) - 2y = 12

20 - 2y = 12

-2y = -8

y = 4

Good! We figured out y. Now we know the solution! The solution is (4,4).

<em>Technology Method:</em>

Grab a graphing calculator. Enter the equations. You will see two lines. Look at where they intersect. The point where they intersect is the solution. That line is (4,4). You could also do this on a piece of paper by graphing the equations.

I hope this helps! Let me know if you need any more help or if I got anything wrong.

3 0
3 years ago
PLEASE HELP due soon!I forgot how to do it omg
Flura [38]

Answer:

(3, -3) is correct

Step-by-step explanation:

-4 × 3 = -12. -12 + 9 = -3

8 0
3 years ago
Explain how to use multiplication to check the answer to a division problem.
____ [38]
You can multiply the quotient by the divisor to check the answer. Your answer is correct if the product is the dividend. If there is a remainder, add it to the product.
5 0
3 years ago
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Which statement is false:
Nat2105 [25]

9514 1404 393

Answer:

  C. Equivalent ratios are ratios that name a different, unequal ratio.

Step-by-step explanation:

Statement C simply makes no sense. It cannot be considered to be true.

__

Statement D seems to be missing a word: ... the rate is called a unit <em>rate</em>.

7 0
3 years ago
If Sally has 2 apples a Jeremy has 9 apples how did they get 24?
Elza [17]
They bought more apples
6 0
3 years ago
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