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saveliy_v [14]
4 years ago
9

Possible grades for a class are A, B, C, D, and F. (No +/− 's.) How many ways are there to assign grades to a class of seven stu

dents?
Mathematics
1 answer:
Archy [21]4 years ago
8 0

Answer: 78125 ways

Step-by-step explanation:

Given : The number of possible grades = 5

The number of students in the class = 7

Then, the number of ways  to assign grades to a class of seven students :_

5\times 5\times 5\times 5\times 5\times 5\times 5=5^7=78125

Hence, there are 78125 ways to assign grades to a class of seven students .

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A number is increased 20%.By what percent the new number is decreased so that the number restores the original value?​
Molodets [167]

Answer:

You have to give the number by which the 20% is increased in order to cross multiply and divide by a hundred to find the missing % of the decrease. Otherwise, you would simply subtract 20% from 100%, which seems unlikely to be the answer. We need more information.

Step-by-step explanation:

4 0
3 years ago
What is the GCF of 6 and 30?*
Rainbow [258]

Answer:

3

Step-by-step explanation:

3 is the largest number that relates to the two numbers.

8 0
3 years ago
Read 2 more answers
Kayla wants to fence in a rectangular dog pen that is 30 ft by 40 ft How would you use wha
castortr0y [4]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the dimension of the dog pen = 30 ft by 40 ft.

Using the knowledge of geometry, that know that a rectangle has been built, the area of the pen should be :

Area of rectangle = Length * width

Area = 40 * 30

Area = 1200 ft²

Perimeter of rectangle = 2(Length + width)

Perimeter = 2(40 + 30)

Perimeter = 2(70)

Perimeter = 140 feets

Hence, area of the pen should be 1200 ft² and its perimeter or fencing should measure 140 feets

4 0
3 years ago
A line contains the points (0,0) and (1,4). what are all the equations that represent this line
baherus [9]
Hello ;

 <span>A line contains the point (0,0) : y=ax         a is aslope
a = (yb -yO)/(xb -xO)               B(1;4)    O(0;0)
 a = (4-0)/(1-0)=4
</span><span>all the equations that represent this line is :  y = 4x    or  y-4x = 0</span>
7 0
4 years ago
I NEED HELP ASAP ILL GIVE BRAINLIEST AND 30 points
raketka [301]

The question you are asking is not that really hard. In fact it is really easy.

I will give you my examples for some question.

1. (example) The probability of the two heads shown will be more than the two tails shown\

2. Since I hit 17 / 100 (17%) for the two heads and I hit 11 / 100 (11%) for the two tails, then my (example) theory was correct since I stated that there will be more probability showing two heads than on two tails.

Basically at questions 3 & 4 (and also 5 & 6), it is the same as questions 1 & 2.

In question 1, 3, and 5, you need to state what YOU think will happen before doing the 100 coin flip.

Then in question 2, 4, and 6, you need to sate IF YOUR THEORY WAS CORRECT OR WRONG using the results you have. It does not matter if you are wrong.

I will give you my example for 1 and 2 question.

1. (example) The probability of the two heads shown will be more than the two tails shown

2. Since I hit 17 / 100 (17%) for the two heads and I hit 11 / 100 (11%) for the two tails, then my (example) theory was correct since I stated that there will be more probability showing two heads than on two tails.

Basically at questions 3 & 4 (and also 5 & 6), it is the same as questions 1 & 2.

For question number 7, the answer is because my theory is just a guess before the outcome.

You can vote how good my answer is, I just hoped I helped you clarify your misunderstandings.

5 0
4 years ago
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