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torisob [31]
2 years ago
15

I need help!!!!!!!!!!!!!

Mathematics
1 answer:
never [62]2 years ago
7 0

Answer:

The perimeter is 38 but it gets rounded to 40

Step-by-step explanation:

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Kelly answered 3 items on a test incorrectly . This was 6% of the items. How many items were on the test?
sergeinik [125]
The answer is:  [D]:  50 .
___________________________________________
Explanation:
___________________________________________
6% of what number is 3?

6/100 * n = 3 ?

0.06 * n = 3 ?

n = 3 / (0.06) = 50 ; which is Answer choice:  [D].
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3 years ago
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Pls help, will give brainliest if your answer is right!<br><br> Question in image.
Blababa [14]

Step-by-step explanation:

Mean = Average : Sum of the data ÷ Number of data

So find the average number of lates per student

4 = Lates

30 (sum of frequencies) = Frequencies

So 4 ÷ 30 = 7.5

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3 years ago
What is 11/15 - 3/20
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The answer is 0.5833
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3 years ago
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The equation of motion of a block with mass m = 8 kg. attached to a spring whose spring Constant is k = 2 and which starts from
Annette [7]

Answer:

FALSE

Step-by-step explanation:

In order to be consistent with the system of unit we should decide if we are going to work with the CGS system <em>(centimeter-gram-second)</em> or the MKS system <em>(meter-kilogram-second). </em>

If we decide to work with the CGS system, the equation of motion would be

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since 1 Kg = 1,000 g

If we decide to work with the MKS system, the equation of motion would be

8x ′′ + 2x = 0; x(0) = 0.03, x ′ (0) = 0

given that 1 mt = 100 cm

5 0
3 years ago
How can I do ratios? I’ve been having a lot of trouble with this in my math class, and really need some help.
Katarina [22]

If you have a fraction, take one number and put a different number on top or underneath, for example if you have 2 cats and 3 dogs, the ratio from cats to dogs would be 2:3 but if you did 2 cats to the total number of animals, you would add 2 and 3 and get 5, so the ratio would be 2:5.

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3 years ago
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