Ask question

Ask question

All categories

4 years ago

6

A bag contains 1 blue, 2green, 3 yellow, and 3 red marbles, as shown. What’s is the probability of drawing a red marble out of t

he bag without looking?

1 answer:

fredd [130]4 years ago

4 0

Hey there!

Your probability of you receiving a red colored marble would 3/9.

Have a nice day fam ;)

You might be interested in

Bezzdna [24]

Answer:

$y=-\dfrac{9}{40}x^2+\dfrac{441}{40}\\ \\y=-\dfrac{9}{160}x^2+\dfrac{1,521}{160}$

Step-by-step explanation:

If a parabola has its vertex on the y-axis, then its equation is

$y=ax^2+b$

This parabola passes through the point R(3,9), then

$9=a\cdot 3^2+b\\ \\9=9a+b$

The area of the right triangle PQR is

$A_{PQR}=\dfrac{1}{2}\cdot PQ\cdot QR$

Find PQ and QR, if $P(x_1,0),\ Q(3,0),\ R(3,9):$

$PQ=\sqrt{(x_1-3)^2+(0-0)^2}=|x_1-3|\\\\QR=\sqrt{(3-3)^2+(0-9)^2}=9$

Now,

$40.5=\dfrac{1}{2}\cdot |x_1-3|\cdot 9\\ \\90=9|x_1-3|\\ \\|x_1-3|=10\\ \\x_1-3=10\ \text{or}\ x_1-3=-10\\ \\x_1=13\ \text{or }x_1=-7$

We get two possible points $P_1(-7,0)$ and $P_2(13,0).$

For point $P_1:\\$

$0=a\cdot (-7)^2+b\\ \\49a+b=0$

So,

$b=-49a\\ \\9=9a-49a\\ \\-40a=9\\ \\a=-\dfrac{9}{40}\\ \\b=\dfrac{441}{40}\\ \\y=-\dfrac{9}{40}x^2+\dfrac{441}{40}$

For point $P_2:\\$

$0=a\cdot (13)^2+b\\ \\169a+b=0$

So,

$b=-169a\\ \\9=9a-169a\\ \\-160a=9\\ \\a=-\dfrac{9}{160}\\ \\b=\dfrac{1,521}{160}\\ \\y=-\dfrac{9}{160}x^2+\dfrac{1,521}{160}$

5 0

3 years ago

How do you solve question 27 and 28

Brrunno [24]

Answer:#1 C.30 #2 40

Step-by-step explanation:

3x+15=7x-5

3x+15+5=7x-5+5

3x+20=7x

3x-3x+20=7x-3x

20=4x

20/4=4/4x

5=x so if it is an equilateral all sides are equal so 3(5)+15=30 so the answer should be 30

So the triangle in #2 is an isoceles so two of the angles are equal so the equation is 2(2x-24)+3x+4=180

4x-48+3x+4=180

7x-44=180

7x=224

x=32

2(32)-24

64-24=40

6 0

3 years ago

Read 2 more answers

The selling price for a classic painting is $16,000, which is $2000 less than two times its original price. What was the origina

kari74 [83]

Answer:

$9,000

Step-by-step explanation:

$16,000 + $2,000 = $18,000

$18,000/2 = $9,000

I think this is correct but I'm not sure.

4 0

3 years ago

Order from least to greatest: <br> 3/4 40/97 1/6

Evgesh-ka [11]

3/4 is over half.

40/97 is about 40/100 = 4/10 is slightly less than half

1/6 is well under half, which would be 3/6.

Least-to-greatest, the numbers are

... 1/6, 40/97, 3/4

3 0

4 years ago

Read 2 more answers

There is a bag filled with 4 blue, 3 red and 5 green marbles. A marble is taken at random from the bag, the colour is noted and

zalisa [80]

Answer:

The answer would be just about 61% or 9/14

Step-by-step explanation:

So, it would be a 71% chance to get 1 green out of the bag, but then you have to keep that green out, which then lowers the chances of getting another green out of the bag, then you have to combine the percentages, and then that is the final percentage.

3 0

3 years ago