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emmainna [20.7K]
4 years ago
5

A bag contains hair ribbons for a spirit rally. The bag contains 9 black ribbons and 11 green ribbons. Lila selects a ribbon at

random, then Jessica selects a ribbon at random from the remaining ribbons. What is the probability that Lila selects a black ribbon and Jessica selects a green ribbon? Express your answer as a fraction in simplest form.
Thanks :)
Mathematics
2 answers:
Komok [63]4 years ago
5 0
9 out of 11 or u could say 11 out of 9
Viktor [21]4 years ago
5 0
9/20 and 11/20 because their are 20 ribbons in all
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Vanyuwa [196]

Here it is given that the width is x ft and total length of the fence is 2400 ft .

Let the length be y ft

So we have

2(x+y) =2400
\\
x+y=1200
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y = 1200 -x

Let A represents area, and area is the product of length and width .

So we get

A = x y

Substituting the value of y, we will get

A = x (1200-x)= 1200x -x^2

Second part

The area is maximum at the vertex, and vertex is

x = - \frac{1200}{2(-1)} = 600 feet

And

y=1200-x = 1200-600 = 600 feet

And that's the required dimensions .

8 0
3 years ago
What is the result of converting 14 in into centimeters
AVprozaik [17]

Answer:

35.56

Step-by-step explanation:

1 in=2.54 cm.

14*2.54=35.56.

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3 years ago
76 m =<br> cm?????? Pls help I cant figure it out!!!
soldier1979 [14.2K]

Answer:

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Step-by-step explanation:

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3 years ago
Jacob and issac decided to run to the basketball court after school the basketball court is 5 1/4 Miles from school the boys run
GenaCL600 [577]

Answer: 1\dfrac{5}{9}\text{ minutes}

Step-by-step explanation:

Complete question is provided in the attachment below.

Given: Jacob and Issac decided to run to the basketball court

Distance between basketball court and school = 5\dfrac{1}{4} miles

=\dfrac{21}{4} miles

Speed = 3\dfrac{3}{8} miles per hour

=\dfrac{27}{8} miles per hour

Since, time = (distance) ÷ ( speed)

Now, the time taken by boys to arrive at the basketball court = \dfrac{21}{4}\div\dfrac{27}{8} hours

=\dfrac{21}{4}\times\dfrac{8}{27}\\\\=\dfrac{7\times2}{9}=\dfrac{14}{9}\\\\=1\dfrac{5}{9}\text{ minutes}

Hence, the required length of time = 1\dfrac{5}{9}\text{ minutes}

3 0
3 years ago
Three times the sum of a number and 3 is 3 less than the number times 5. Find the number
Reika [66]

Hello!

Let's write this as an equation.

3(x+3)=5x-3

First, let's simplify the parentheses.

3x+9=5x-3

Let's subtract 5x from both sides.

-2x+9=-3

We subtract 9 from both sides.

-2x=-12

We divide both sides by -2.

x=6

Therefore, the number is 6.

I hope this helps!

4 0
3 years ago
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