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Sauron [17]
3 years ago
9

To determine student's final grade for a math class, Mr. Abbot throws out the lowest test score and takes the average of the rem

aining scores. Phil earned the following test scores in the class: 80, 76, 84, 91, and 95. What was Phil's final grade?
Mathematics
1 answer:
Scorpion4ik [409]3 years ago
8 0

First, eliminate the lowest grade (76).  Now, find the average/mean of the remaining 4 test grades.  To do so, add up all the test grades, then divide them by the total number of test grades:

80+84+91+95=350

350/4=87.5

Hope this helps!!

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nydimaria [60]

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3 years ago
One number is 8 more than the other. When the larger is divided by the smaller, the quotient is 7/5
Wewaii [24]

Answer:

<h3>          The numbers are 20 and 28</h3>

Step-by-step explanation:

x  - the other number  (the smaller one)

x+8  - 8 more than the other number (the larger number)

 

\dfrac{x+8}x=\dfrac75\\\\(x+8)\cdot5=x\cdot7\\\\5x+40=7x\\^{\quad-40\qquad-40}\\{}\quad5x = 7x-40\\^{\quad-7x\quad-7x}\\-2x=-40\\^{\div(-2)\quad\div(-2)}\\{}\ \ x=20\\\\x+8=28

6 0
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How to find number of sides in a regular polygon based on the 900 degree measure of all interior angles?
Lerok [7]
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
900 = </span><span>(Number of Sides -2) • 180 degrees
900 / 180 = </span><span>Number of Sides -2
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</span><span>Number of Sides = 7
Polygon is a heptagon.
http://www.1728.org/polygon.htm

</span>
8 0
2 years ago
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