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topjm [15]
3 years ago
5

At Furnace Woods School, enrollment increased from 320 students in 2006  to 349 students in 2007. What is the percent increase i

n enrollment? Please let me know how to do it without the computer calculations so I can do problems like these on my own
Mathematics
1 answer:
seraphim [82]3 years ago
6 0

Here are two slightly different ways to look at it. 
Both ways do exactly the same thing.

<u>Way #1:</u>
Divide  (the new number) by (the old number)

 349 / 320 = 1.090625

Change the quotient  1.090625  to percent.

To change any number into percent, multiply it by 100, or move the decimal point  2 places to the right.

   1.090625  ==>  109.06 %

The new number  (349)  is  109.06%  of the old number  (320).

But the old number was  100%  of itself.  So the new number
is  <em>9.06%  more</em> than the old number was.
================================

<u>Way #2:</u>
How much bigger is the new number ?

       (349 - 320) = 29 bigger

Divide the increase by the old number:

       29 / 320 = 0.090625

Change the quotient to a percent.

     0.090625 = 9.06%

The <em>increase</em> is<em>  9.06%</em>  of the old number.


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Setler [38]
The mean of the data is given

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The variance of the data is given
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5 0
3 years ago
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(7)/(3) of it is 5 (5)/(6)
slava [35]

let's firstly convert the mixed fraction to improper fraction and then take it from there, keeping in mind that the whole is "x".

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7 0
1 year ago
the member increased their elevation 290 feet during their hike this morning. now they are at an elevation of 450 feet
ExtremeBDS [4]

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Step-by-step explanation:

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3 0
3 years ago
Given that BC = 7, AB = 17.89, and C is between A and B, what is the length of ?
ivanzaharov [21]
*assuming that ABC is a straight line** 
<span>then you have </span>
<span>AB = 17.89 ..... this is the length of the whole line </span>

<span>BC is a part of the line = 7 </span>

<span>therefore the length of the other part = 17.89 - 7 </span>

<span>= 10.89</span>
8 0
3 years ago
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If (4x−7)2=ax2+bx+c for all values of x, what is the value of c(b+a)?
ollegr [7]

Answer:

  -1960

Step-by-step explanation:

The expression on the left expands to ...

  (4x -7)² = (4x)² +2(4x)(-7) +(-7)² = 16x² -56x +49

Matching coefficients, you have ...

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  • b = -56
  • c = 49

Then the expression c(b+a) evaluates to ...

  49(-56+16) = 49(-40) = -1960

8 0
3 years ago
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