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2 years ago

7

There is a bag filled with 4 blue, 3 red and 5 green marbles.

1 answer:

bearhunter [10]2 years ago

7 0

Answer:

1/11

Step-by-step explanation

There are 12 marbles in the bag. When we first pick we have 4 blue marbles. So 4 blue marbles/12 random marbles. When we pick blue and noted, there are 3 marbles in the bag because of we didn't put it back. So when we choose again there are 11 marbles and 3 blue marbles in the bag. Choosing a blue one case is 3/11.

The last part of this case is happening as a chain. So we need to multiply our two answers.

=4/12*3/11

=1/3*3/11

=1/11

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I will mark brainliest to whoever gets this answer! Please help!

lisov135 [29]

Answer:

20 yd²

Step-by-step explanation:

This problem is really easy once you break it down!

First, find the area of the triangle.

$A = \frac{1}{2}bh$

b = 5 + 3 = 8

h = 4 + 4 = 8

$A = \frac{1}{2}*8*8$

$A = 32$

Now find the area of the square.

$A = lw$

$A = 4*3$

$A = 12$

The last step is to subtract.

Area of triangle - area of rectangle =

32 - 12 = 20

20 yd²

Hope this helped! :)

4 0

3 years ago

Read 2 more answers

Old me yall I look way WAY betta now I got dreads braces I’m taller and I got blue eyes so ye

Anestetic [448]

Answer:

STOP

Step-by-step explanation:

People actually want to answer questions.

6 0

2 years ago

Read 2 more answers

Area of a base is 2 3/4 and the height is 4/5 what is the volume

Serhud [2]

Answer:

2 4/20

Step-by-step explanation:

4 × 2 = 8

8 + 3 = 11

11/4 × 4/5

11 × 4 = 44

4×5= 20

44/20

Simplified is

2 4/20

8 0

3 years ago

One of two supplementary angles is five times the other. Find the measure of each angle

Mama L [17]

Answer:

Step-by-step explanation:

supplementary angles add up to 180

so let one angle be x.....and the other angle is 5 times bigger....so let the second angle be 5x

x + 5x = 180

6x = 180

x = 180/6

x = 30

5x = 5(30) = 150

so one angle is 30 and the other angle is 150

5 0

3 years ago

Amy reads 12% of a 356 page book each night. Which expression represents the number the of unread pages if Amy reads for x night

katovenus [111]

Answer:

An expression represents the number the of unread pages if Amy reads for x nights is 356-43x

Step-by-step explanation:

Total number of pages in a book = 356

Amy reads 12% of a 356 page book each night.

So, Number of pages read by her each night = $\frac{12}{100} \times 356 =42.72 \sim 43$

So, number of pages read in x nights = 43x

So, the number the of unread pages after x nights= 356-43x

Hence An expression represents the number the of unread pages if Amy reads for x nights is 356-43x

4 0

3 years ago