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Sergeu [11.5K]
4 years ago
9

Alberts sixth grade class will have five test for social studies they already have two of Alberts grades for these two tests are

shown below. If Albert wants the mean of his five tests to be 90 what could be his last three grades. Test 1 was an 85 Test two was a 100
Mathematics
1 answer:
tigry1 [53]4 years ago
3 0
Test scores could be 90,89,88

100+85+90+89+88= 452
452/5=90.4

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
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ohaa [14]

the answer to this is nine



7 0
4 years ago
PLEASE HELP GIVING BRAINLIST TO BEST ANWSER
Travka [436]

Answer:

6

5

3

pt 2

6+5+3+1=15

plz wait till someone else answers cuz ion know if this is what the question is asking for

3 0
3 years ago
7.
Agata [3.3K]

Answers:

  • prime number = {2,3,5}
  • composite number = {4,6}
  • number less than four = {1,2,3}
  • number more than or equal to three = {3,4,5,6}

====================================================

Explanation:

The list of all possible outcomes on a single standard die is {1,2,3,4,5,6}. The curly braces indicate set notation.

A prime number is a number where its only factors are 1 and itself. The value 1 is not prime, and it's not composite either.

Something like 3 is prime because its only factors are 1 and 3. Something like 4 is composite because 4 = 2*2. A composite value has factors other than 1 and itself.

Parts (iii) and (iv) are fairly straight forward. You simply list items less than four for part (iii) and you list items that are three or greater for part (iv).

5 0
4 years ago
Jacob is painting a circular picture on his wall. If the painting has a diameter of 6 ft, how much paint will he need to cover t
PolarNik [594]

Answer:

28.278ft^2

Step-by-step explanation:

Given data

Diameter of painting= 6ft

Radius= 3ft

Let us find the area of the painting

Area= πr^2

Substitute

Area= 3.142*3^2

Area= 3.142*9

Area= 28.278ft^2

8 0
4 years ago
What is an Arithmetic progression?what is an arithmetic progression?
alexandr402 [8]

Answer:

Arithmetic Progression is another way to say Arithmetic sequence. It is basically a sequence of numbers that the difference between the consecutive terms are constant.

Heres and example:

1, 3, 5, 7, 9, 12, 15, 18.....etc.

This has an arithmetic progression of 2.

Hope this helped! Reach out to me if you have any more questions about this!

4 0
3 years ago
Read 2 more answers
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