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irakobra [83]
3 years ago
5

please answer this!!!!!Paul and his friends average their test grades and find that the average is 95. The teacher announces tha

t the average grade of all of her classes is 83. why are the averages so different?
Mathematics
2 answers:
yan [13]3 years ago
8 0
Paul and his friends is a smaller group of scores to add together and divide with, so their average will be different from the class since the class has more scores to add up and a bigger number of people to divide by.
den301095 [7]3 years ago
6 0
The averages are very different because there was a wide range of test scores among students
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Ama bought 12 eggs at $1.10 each. If 3 of the eggs got broken and sold the remaining at $1.45 each, calculate the
kkurt [141]

Answer:

1.1%

Step-by-step explanation:

cost price=1.10×12

=$13.20

selling price=(12-3)×1.45

=9×1.45

=$13.05

loss= cost price-selling price

=13.20-13.05

=0.15

loss percent=0.15/13.20×100

1.13636

1.1%

Please rate brainliest

4 0
2 years ago
What is the solution to the system of equations? One-fourth x minus one-half y = 8 One-half x + three-fourths y = negative 5 (–8
kiruha [24]

Answer:

Step-by-step explanation:

x/4-y/2=8, x-2y=32, x=32+2y

x/2+3y/4=-5, 2x+3y=-20, x=(-20-3y)/2

32+2y=(-20-3y)/2

64+4y=-20-3y

7y=-84

y=-12, since x=32+2y

x=32+2(-12), x=32-24=8

So the solution is the point (8, -12)

3 0
3 years ago
Read 2 more answers
IDENTIFICA EL VOLUMEN DE CADA UNA DE LAS SIGUIENTES FIGURAS
Alex17521 [72]

Answer:

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2 years ago
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vladimir1956 [14]
The diamond is parallels
8 0
3 years ago
Erik and Nita are playing a game with numbers. In the game, they each think of a random number from zero to 20. If the differenc
klasskru [66]
Given:
Choose a number between 0 and 20.
If the difference is less than 10 then Eric wins.
Let us x is Eric's number.  0 <u><</u> x <u><</u> 20
If Eric wins. |x -7| < 10
|x-7| < 10 → -10 < x-7 < 10 → -10 + 7 < x - 7 + 7 < 10 + 7 → -3 < x < 17

Taking into account that the number must be given between 0 and 20.
0 <u><</u> x <u><</u> 20
-3 < x < 17

→ 0 < x < 16


7 0
3 years ago
Read 2 more answers
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