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yaroslaw [1]
3 years ago
6

the 2008 year book at middleton middle school had 236 candid pictures of students. the 2007 yearbook had 214 candid pictures of

students. what was the percent of change in the number of candid student pictures from 2007 to 2008 to the nearest tenth?
Mathematics
1 answer:
Nostrana [21]3 years ago
4 0
Use proportions.
214/236=x/100(100 because it's a percentage.
cross multiply:
23600=214x
solve for x:
x= 11.3(rounded)
11.3% increase
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elena55 [62]
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= 2 ft/sec
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14).
(120 yd / 2 min) x (3ft / 1yd) x (1min /60 sec)

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15).
(60 mile /1 hour) x (5,280ft / 1mile) x (1hr / 3,600sec)

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4 0
3 years ago
This graph shows how the length of Karen's essay depends on the number of hours she spends writing this week.
Gre4nikov [31]

Answer: 0.8 pages per hour.

Step-by-step explanation:

For this exercise it is important to know that, by definition, Direct variation equations have the following form:

y=kx

Where "k" is the constant of variation.

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In this case, given the graph attached in the exercise, you can follow these steps in order to find the constant of variation:

Step 1: You need to choose any point on the line. Let's choose the point (5,4).

Step 2: Now you must ubstitute the coordinates of that point into  y=kx. Then:

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Step 3: Finally, you must solve for the Constant of variation "k", in order to find its value. Therefore, you get that this is:

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4 0
3 years ago
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pickupchik [31]
The answer is 10


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8 0
3 years ago
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Reil [10]
I would make the equation 800x=120, x representing the decimal form of the unknown percentage

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Then move the decimal point twice to the right to get 15%

Hope this helps
6 0
3 years ago
Read 2 more answers
Can you plss help me with 31
hammer [34]
There are 52 weeks in a year.

$37 * 52 = $1924

Hence, $2000 is just about right. (B)
4 0
3 years ago
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