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sineoko [7]
2 years ago
14

There are 5 red marbles, 4 blue marbles and 7 black marbles in a bag. Like the theoretical P(choosing a red)​

Mathematics
1 answer:
Kryger [21]2 years ago
4 0

Answer:

\frac{5}{16}

Step-by-step explanation:

1. To find the answer, add up all the marbles.

4+5+7= 16

2. Because 16 is the total number of outcomes, it will be the denominator.

\frac{}{16}

3. Because 5 is the number of desireable outcomes, it will be the numerator.

\frac{5}{16}

(Note: the <u>decimal equivalence</u> is 0.3125).

(Note: the <u>ratio equivalence</u> is 5:16).

(Note: the <u>percent equivalence</u> is 31.25%).

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How many times larger is 6 × 1011 than 2 × 10-5?
nasty-shy [4]

Answer:

A. 3 x 1016

I hope its help for you

8 0
3 years ago
There are 25 students in a class at the beginning of the school year and the average number of siblings for each student is thre
Zigmanuir [339]

Answer:  Yes. The new average is 3

<u>Step-by-step explanation:</u>

25 students at 3 siblings each = 75 siblings

26 students has 75 siblings + 8 siblings = 83 siblings

New average is 83 siblings ÷ 26 students = 3.19 siblings per students

5 0
3 years ago
How do you solve this?
masha68 [24]
Here's what i found online:

<span>a/3+4=6

We simplify the equation to the form, which is simple to understand
<span>a/3+4=6

Simplifying:
<span> + 0.333333333333a+4=6

We move all terms containing a to the left and all other terms to the right.
<span> + 0.333333333333a=+6-4

We simplify left and right side of the equation.
<span> + 0.333333333333a=+2

We divide both sides of the equation by 0.333333333333 to get a.
<span>a=6

Hope this helped :-)</span></span></span></span></span></span>
4 0
4 years ago
At the end of a party, there are 3 pizzas left over. Each person will eat 2/8 of a pizza. How many people will 3 pizza feed?
Georgia [21]

First, convert 3 into a fraction with denominator 8.

(3 pizzas)(8/8 pizzas)=24/8 pizzas

Then, divide 24/8 pizzas by 2/8 pizzas per 1 person.

(24/8 pizzas)(2/8 pizzas/person)

Dividing by a fraction is the same as multiplying by the reciprocal:

(24/8)/(2/8)=(24/8)×(8/2) the 8s cancel and you are left with 24/2=12

3 pizzas will feed 12 people.

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20as%20%5C%3A%20a%20%5C%3A%20dicimal%20%5C%3A%20%5Cfrac%7B11%7D%7B40%7D%20%20%3D%200.275%20%5
kakasveta [241]

Answer:

0.0825

Step-by-step explanation:

33/400=0.0825

8 0
3 years ago
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