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MrRissso [65]
3 years ago
5

Last year 762 students went back to the school and spring dances. This year only 645 students attended the two dances. What is t

he precent of decrease?
Mathematics
1 answer:
Mars2501 [29]3 years ago
7 0

The percent of decrease is 15%

Further explanation:

We have to calculate the percentage decrease

The formula for percent decrease is:

Percent\ decrease= \frac{decrease}{original\ quantity}*100\\While\ decrease\ is\ calculated\ as:\\Decrease=Original\ quantity-decreased\ quantity

Given

Original Quantity=762 students

Decreased Quantity=645 students

Decrease=762-645

=117

Putting values in the formula

Percent\ Decrease=\frac{117}{762}*100\\=0.15*100\\=15\%

The percent of decrease is 15%

Keywords: Percent Decrease, Percentage

Learn more about Percentage at:

  • brainly.com/question/5565320
  • brainly.com/question/5533462

#learnwithBrainly

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Step-by-step explanation:

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Which of the following points lies on the line perpendicular to
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Answer:

Step-by-step explanation:

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also recall that the formula to find the slope of a line is m=y2-y1/x2-x1

to solve this problem, we need to go through all of the options and find the slope of that line using the given point and point (0,4). After that, we need to check if that slope is equal to 1. One is the opposite reciprocal of -1, and -1 is the slope of the equation y= -x+4. if the slope is equal to 1, the line will be perpendicular to the line y= -x+4.

lets do the math now:

option a)

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option b)

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--------------

ok girl i dont wanna do all the rest of the calculations. just keep doing the same thing with all the other options until you find something that has a slope of 1.

toodles! :)

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Hope this has helped.
6 0
3 years ago
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