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Effectus [21]
4 years ago
11

A class has 24 boys and 16 girls. on a test the class mean was 75. the mean of the girls' score was 72. what was the mean of the

boys' scores?
Mathematics
2 answers:
Mice21 [21]4 years ago
6 0

jhnkjhn jnjhvgfhjvb fcgvgfhcv fcgh jfgch jklk

ArbitrLikvidat [17]4 years ago
3 0
24+16=40
40*75=3000
16*72=1152
3000-1152=1848
1848/24=77
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quester [9]

Answer:

A: (2,-4)  B: (2,-1) C: (5,-1) D: (5,-2)

Reflected over x-axis:

A: (2,4)  B: (2,1) C: (5,1) D: (5,2)

2 units right one unit down

A: (4,-5)

dilated by 3

rotated 180 about the origin-

(-4,5)

Step-by-step explanation:

Your finding the transformations for only A

7 0
3 years ago
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How do I solve this?
aksik [14]
Multiply the first equation by 2
4x-6y=16

Then add the equations to eliminate x
4x-6y=16
-4x+5y=-10

-y=6
y-=6

Plug the y value in
2x-3(-6)=8
2x+18=8
2x=-10
x=-5

Final answer: (-5,-6)
4 0
3 years ago
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Can someone help me please
Ivanshal [37]
Answer would be C because a straight line is equal to 180° so if you add up 3x° and 27° it should be equal to 180°
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3 years ago
Select the correct answer.
lara31 [8.8K]
A I think it’s A llllleeeeettt go
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Nadusha1986 [10]

Answer:

(3,2) I think

Step-by-step explanation:

X= 3

Y=2

3 +2 =5

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