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finlep [7]
2 years ago
12

A bag contains 3 red marbles, 7 blue marbles and 5 green marbles. If three marbles are drawn out of the bag, what is the probabi

lity that all three marbles drawn will be green?
Mathematics
2 answers:
Gnoma [55]2 years ago
8 0

Answer:

1/3

Step-by-step explanation:

since the total number of marbles are 3+7+5=15

and the number of green marbles=5

so probability of three marbles drawn being green=5/15=1/3

Alisiya [41]2 years ago
3 0

Answer:

6/91

Step-by-step explanation:

P(all are green)= P(GGG)

P(G)×P(G)×P(G)

5/15 × 4/14 × 3/13 = 6/91

NOTE: the total marbles in the bag decreased as the green marbles were picked

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Finding angle measure using triangles ​
Rainbow [258]

x = 58°

<u>Explanation:</u>

According to the diagram, lines HI and JK are parallel to each other.

∠AHI = 60°

∠JKI = 62°

∠JKI and ∠HIA are equal because when two lines are parallel then the corresponding angles are equal.

So,

∠JKI = ∠HIA = 62°

In ΔHIA,

∠AHI + ∠HIA + ∠IAH = 180°

60° + 62°+ x = 180°

122° + x = 180°

x = 180° - 122°

x = 58°

3 0
3 years ago
8 more than twice a number is greater then -14
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Answer:

x>-11

Step-by-step explanation:

2x+8>-14

2x>-14-8

2x>-22

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x>-11

x>-11

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2 years ago
The most popular roller
GarryVolchara [31]

4/12 chance of dying

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1 year ago
$1,250 was deposited into an account for 2 years with a 2.5% interest rate. What is the in
raketka [301]
I will assume it is 2.5% interest rate over 2 years and not per year. If this isn’t the case then let me know.
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Well $1250 divided by 100 = $12.50
This is 1%-
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To make 2.5% we do-> $12.50 x 2.5= $31.25
This makes our interest rate $31.25
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To get our total amount.....
$1250 + $31.25 = $1281.25
4 0
3 years ago
Sylvia invested 500 in an account compounded annually with an interest rate of 8%. Manuel invested 600 in an account with a comp
il63 [147K]

Answer:

Sylvia's investment would double first

Step-by-step explanation:

The number of years it takes for amount invested to double itself using the 72 rule is 72 divided by rate of interest as computed below:

Sylvia investment:

Sylvia's investment would double in 9 years' time  (72/8)

Manuel's investment"

Manuel investment of $600 would double itself in 9.9 years' time (72/7.25)

From the above analysis,Sylvia's investment of $500 at the 8% rate of interest would double first

8 0
2 years ago
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