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lozanna [386]
1 year ago
6

A bag contains 2 red marbles and 3 black marbles. If Abby picks a marble without looking, returns it to the bag, and then draws

a second marble, what is the probability that both marbles are red? Write your answer as a fraction.
Mathematics
1 answer:
sveta [45]1 year ago
5 0

Answer:

It should be 4/25

Step-by-step explanation:

The first time is 2/5, multiply by the second time which is also 2/5, and it equals 4/25. If that's not an answer on there just do 2/5 but i was taught to do it my way.

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PLEASE HELP I WILL MARK BRAINLEIST
icang [17]

Answer:

25 mm

Step-by-step explanation:

Set up a proportion where x is the number of millimeters for 160 kilometers

\frac{5}{32} = \frac{x}{160}

Cross multiply and solve for x:

32x = 800

x = 25

So, 25 millimeters represent 160 kilometers

7 0
3 years ago
Find the distance between the point (2, 3) and the line 4x + 3y = 10 (round your answer to the nearest tenth).
Monica [59]

Explanation

Let's first graph the elements:

Using the distance formula we get:

d=\frac{|4(2)+3(3)-10|}{\sqrt{4^2+3^2}}d=\frac{|7|}{\sqrt{25}}=\frac{7}{5}=1.4

4 0
1 year ago
-4x + 11y = 15<br> X = 2y <br><br> Solve using substitution <br><br> X = <br><br> Y=
Virty [35]
-4(2y)+11y=15, -8y+11y=3y=15: y=5

X=2(5)=10

To check your work -4(10)+11(5)=15
15=15
8 0
2 years ago
Please help me guys!!!
sdas [7]
I can't see the whole problem
3 0
3 years ago
Solve the equation <br>-5x+x over 2 = 9
Alekssandra [29.7K]
Ok soo

-5x+x/2=9

- 4x/2=9

-(2^2-1 *x)=9

2x/2=- 9/2

x=- 9/2

x= -4 1/2
5 0
3 years ago
Read 2 more answers
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