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iris [78.8K]
2 years ago
7

Tommy has a history test on Monday morning. He writes down the number of minutes he studies for the test each day for a week. Us

ing his chart, calculate the average number of minutes he studied each day. If necessary, round your answer to the nearest tenth.    Day       Mins
                          Monday-30
                          Tuesday-20
                          Wednesday-0
                          Thursday-0
                          Friday-0
                          Saturday-0
                          Sunday-120
Mathematics
2 answers:
Schach [20]2 years ago
7 0
To find the average, add up all the numbers, then divide that answer by the quantity of numbers.

STEP 1:
add all numbers

=30 + 20 + 0 + 0 + 0 + 0 + 120
=170 total


STEP 2:
divide total from step 1 by 7 (total quantity of numbers given, including zeros)

=170 ÷ 7
=24.2857
=24.3 rounded to nearest tenth


***You could also calculate the average by adding only non-zero results (20,30,120) and then dividing by 3 (the quantity of only non-zero numbers).


ANSWER: The average number of minutes studied per day is 24.3.

Hope this helps! :)
Vladimir [108]2 years ago
4 0

Answer:

The Answer for this question is merely 30.7

Step-by-step explanation:


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Can someone plzz help me with these 2 questions. thanks!
Deffense [45]

9514 1404 393

Answer:

  4. height: 5√3 cm; area: 25√3 cm²

  5. 30√2 ft ≈ 42.43 ft

Step-by-step explanation:

4. The height of an equilateral triangle is (√3)/2 times the side length, so is ...

  height = (√3)/2 × (10 cm) = 5√3 cm

The area is given by the formula ...

  A = 1/2bh

  A = 1/2(10 cm)(5√3 cm) = 25√3 cm²

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5. The diagonal of a square is √2 times the side length, so the distance from 3rd to 1st base is ...

  (30 ft)√2 ≈ 42.43 ft

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The length of the diagonal of a square is something you should be familiar with. If you're not, you can figure the distance using the Pythagorean theorem.

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6 0
2 years ago
Which of the following is a factor of 3x3-12x2 +X-4 ?<br> A. X+3<br> B. X+2<br> C. X-4<br> D.X-1
DiKsa [7]

Answer:

B.x+2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP!!!!!!
Katena32 [7]
1. - Since a cube is all the same lengths on all sides you would want to find the area of one of the sides. You would do this by multiplying 3.8 by 3.8.
3.8*3.8=14.44
Since you have six faces on a cube you want to multiply this by 6.
14.44*6=86.64
So your answer for 1. is 86.64 in^2 of glass

3. Same thing as number one. Find the face of one side:
1 1/3*1 1/3 is about 1.7777
Multiply this by the six faces. 
1.7777*6 is about 10.66666
So your answer for 3. is about 10.666 (repeating) in^2

4. For this one, you want to follow the surface area formula for a cylinder. Which is - A=2πrh+2πr^2
When you put all your numbers in it would look like this: 
2*3.14*2*22+2*3.14*2^2
Once you do that equation you will get 301.44
So that should be your answer 301.44 cm^2

Hope this helps!
8 0
3 years ago
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