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Mamont248 [21]
3 years ago
10

I just want to know if I'm correct on that question.

Mathematics
1 answer:
Anni [7]3 years ago
5 0
I did the same thing you did ... I added up the "scores" column
and divided the total by 5 .  That answer is 2 .

Then I read what you said about the answer sheet, so I went back
and looked at the problem again.<em />  Good thing I did.  You have to look
and see what the first column says, and what it means.

There are FIVE different students who each scored 4.
There are THREE different students who each scored 3.
There are FOUR different students who each scored 2.
.
.
etc.

The total of all the scores is 44, not 10.
The  total number of students is 20, not 5.

That's where the "2.2" comes from.
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Answer:

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8 0
3 years ago
Use the Pythagorean Theorem to find the length of the leg in the triangle shown below.
Natali [406]
The answer to what the length of the leg would be is 15.

You would do this problem by first writing down your Pythagorean Theorem, which is a^2 + b^2 = c^2.

Since we have our hypotenuse which is c^2 in our equation, we would write or insert the number we have.

So our equation could be that a or b leg equals 20, it doesn’t matter which one.

So we could write, 20^2 + b^2 = 25^2. So we don’t know what b leg is.

First we should figure out what 20^2 is and what 25^2 is.

20^2 is 400 and 25^2 is 625.

Our equation now comes to 400 + b^2 = 625.

Now we take 400 and subtract it from
625 -> 400 + b^2 = 625
-400.

So 625 - 400 comes out to be 225.

Lastly instead of squaring or putting 225 to the second power, we do the opposite.

So instead of squaring 225 we must square root 225. √ 225 .

The square root of √ 225 comes out to be 15.

3 0
3 years ago
Tessa is training for a marathon she runs 13 km a day for 3 days
creativ13 [48]

nice

i think there's supposed to be more to the problem lol

4 0
3 years ago
Read 3 more answers
You bought jeans last week for $55. Today you see that the jeans are on
PtichkaEL [24]
Yes I think it’s that
7 0
3 years ago
What is the answer and steps to do it 45 +5/6x =50
Nookie1986 [14]
<span><span>Equation:- 45+<span><span>5/6 </span>x</span></span>=50
</span>1) Simplify both sides of the equation. <span><span><span><span>5/6 </span>x </span>+ 45 </span>= 50
</span>2) Subtract 45 from both sides. <span><span><span><span><span>5/6 </span>x </span>+ 45 </span>− 45 </span>= <span>50−45 </span></span><span><span><span>5/6 </span>x</span>=5
</span>3) Multiply both sides by 6/5.<span><span><span>(<span>6/5</span>)</span>*<span>(<span><span>5/6 </span>x</span>)</span></span>=<span><span>(<span>6/5</span>)</span>*<span>(5)</span></span></span><span>x=6

SO, x=6.
</span>
Hope I helped.
4 0
4 years ago
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