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blagie [28]
3 years ago
5

Which expression is equivalent 30 points

Mathematics
2 answers:
elixir [45]3 years ago
7 0

Answer:

30b

Step-by-step explanation:

what you do is times 6 and 5 then add b

Ymorist [56]3 years ago
6 0

~Hello There!~

There is a rule you must know to do this question:

A negative number multiplied by a negative number, makes a positive number.

Therefore:

- 6 * - 5b = 30b

Hope This Helps You!

Good Luck :)

Have A Great Day ^-^

- Hannah ❤

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There are four boys and eight girls in a class. The teacher randomly selects three different students to answer questions. The f
umka21 [38]

The probability of the given condition is 28/165.

Given that, there are four boys and eight girls in a class.

We need to find the probability of the given question.

<h3>What is probability?</h3>

The probability is defined as the chances of happening of any random event or the possibility of happening of any event is called the probability.

The teacher randomly selects three different students to answer questions.

The first is the student is a girl, the second student is a boy, and the third student is a girl.

The total number of students=12, the number of boys=4 and the number of girls=8.

Now,

Step 1: The first student is a girl=8/12

Step 2: The second student is a boy=4/11

Step 3: The third student is a girl=7/10

In the first step, you select one of 8 girls among 12 students.

In the second step, you select one of 4 boys among the remaining 11 students.

In the third step, you select one of the remaining 7 girls among the remaining 10 students.

Thus, probability=(8/12)×(4/11)×(7/10)=28/165

Therefore, the probability of the given condition is 28/165.

To know more about probability visit:

brainly.com/question/24756209

#SPJ1

4 0
1 year ago
I found some shirts for Jonah that were 40 percent of their regular price I bought him 3 shirts and each one was regularly price
Alekssandra [29.7K]

Answer:

32.40

Step-by-step explanation:

The shirts were 40% of the regular price

The sale price of 1 shirt was

18*40% = sale price

18*.40 =7.20

He  bought 3 shirts, so multiply by 3

3 * 7.2 =21.60

He paid 21.60

The price he would have paid without the discount is

18*3 = 54

The savings is

54- 21.60 =32.40

8 0
3 years ago
Assume that Brad makes an initial investment of $2,000. Use your formula to find the final balance of the savings account after
svetlana [45]

Answer:

The formula is 2000 x (1 + Rate/100)^15

5 0
3 years ago
A circus acrobat is shot out of a cannon. The equation for the acrobat's pathway can be modeled by h= -16t^2+25. How long will i
Alex_Xolod [135]
For this we almost have the following equation:
 h = -16t ^ 2 + 25&#10;
 We must match the equation to zero:
 -16t ^ 2 + 25 = 0&#10;
 From here, we clear the value of t.
 We have then:
 16t ^ 2 = 25&#10;&#10;t ^ 2 = 25/16
 We discard the negative root because we are looking for time:
 t =  \sqrt{ \frac{25}{16} } &#10;&#10;
 t =  \frac{5}{4}
 Answer:
 
it will take him to reach the ground about:
 
t = \frac{5}{4} seconds
5 0
3 years ago
Each of the 30 major league baseball teams carries a 40-person roster. A sample of 60 players (5 percent of all 1,200 players) i
Georgia [21]

Answer:

No

Step-by-step explanation:

Using this method, each group of 60 players do not have the same chance of being selected.

Also with this method, the selection will not be uniformly distributed among the 30 teams. Some teams will have more players, some will have few and some will have no player selected at all.

8 0
3 years ago
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