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Roman55 [17]
3 years ago
10

A bag contains 3 red marbles, 7 blue marbles, and 2 green marbles. What is the probability of choosing a blue marble when one ma

rble is drawn?
Mathematics
1 answer:
Hitman42 [59]3 years ago
8 0

Answer:

7/12

Step-by-step explanation:

To find the probability of drawing a blue marble you need to find how many marbles there are in total.

So you have to add 3 red marbles, 7 blue marbles, and 2 green marbles to get the total.

So 3 + 7 + 2 = 12

There are 12 marbles in total so now you have to find how many blue marbles there are.

There are 7 blue marbles out of 12 marbles.

Now you have to put this as a fraction to see if it can be simplified.

7/12 cant be simplified, so the probability of drawing a blue marble is 7/12.

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One number exceeds another number by 6. One fourth of the sum of the two numbers is two less than the smaller.
dolphi86 [110]

Answer:

7 and 13

Step-by-step explanation:

let the 2 numbers be x and y , x > y , then

x = y + 6 → (1)

\frac{1}{4} (x + y) = y - 2 ( multiply both sides by 4 to clear the fraction )

x + y = 4y - 8 ( subtract 4y from both sides )

x - 3y = - 8 → (2)

Substitute x = y + 6 into (2)

y + 6 - 3y = - 8

- 2y + 6 = - 8 ( subtract 6 from both sides )

- 2y = - 14 ( divide both sides by - 2 )

y = 7

Substitute y = 7 into (1)

x = 7 + 6 = 13

The 2 numbers are 7 and 13

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3 years ago
Jane cuts a foam block along the red line. When she looks at the newly
alexira [117]
I believe the answer is A
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3 years ago
Find the proceeds for the simple discount note.
lutik1710 [3]
Given:
Face Value $15,000
Discount rate 6.5%
Term 70 days

Discount for a simple discount note:
Discount = Maturity Value * Discount Rate * Term of Note
Discount = 15,000 * 0.065 * 70/360 
Discount =   189.58

Proceeds from Simple Discount note:
Proceeds = Maturity Value - Discount
Proceeds = 15,000 - 189.58
Proceeds = 14,810.42

The proceeds for the simple discount note is $14,810.42. Choice C. 
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Read 2 more answers
100 POINTS<br><br> PLEASE PROVIDE STEPS.<br><br> THANK YOU!!!
alexgriva [62]

Answer:

⅓ m/s

Step-by-step explanation:

Area of a square is:

A = s²

Take derivative of both sides with respect to time:

dA/dt = 2s ds/dt

Given that dA/dt = 6 m²/s and s = 9 m:

6 m²/s = 2 (9 m) ds/dt

ds/dt = ⅓ m/s

8 0
4 years ago
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Question 9<br> Find the length of<br> ST<br> s<br> T T<br> 5<br> U
julia-pushkina [17]

Answer:

5

Step-by-step explanation:

The answer is 5 because all angles are congruent.

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3 years ago
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