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nydimaria [60]
2 years ago
10

What is the answer of the screen shorted file

Mathematics
1 answer:
gtnhenbr [62]2 years ago
8 0

Answer:

Check pdf

Step-by-step explanation:

Download pdf
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Andre and scott share the driving on a trip. Scott drives 7 miles more than three times tge distance Andre drives. If the trip i
Alekssandra [29.7K]

Answer:

Step-by-step explanation:

What we know is that A + S = 111. That is, the miles Andre drove plus the miles Scott drove totalled 111 miles. What we also know is that Scott drove quite a bit more than Andre did. Scott drove 7 miles more that ( +7 ) 3 times the number of miles Andrea drove. That looks like this algebraically:

S = 3A + 7

Now we can sub in that value for S to the original equation:

If A + S = 111 and S = 3A + 7, then

A + 3A + 7 = 111 and

4A + 7 = 111 and

4A = 104 so

A = 26 and

S = 3(26) + 7 so

S = 85 miles.

Scott drove 85 miles.

3 0
3 years ago
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Find volume for this shape
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1,036 M. 
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The population of a town was 25,000 people. then, 3,200 people moved away.. what was the percent decrease?
bogdanovich [222]
It Is B.21.8%, Simple way to figure this out is round B to 20%, If 3200 equals 20% and 20% times 5 equals 100% all you do is multiply 3200 by 5.
3 0
2 years ago
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What is the y-intercept of the line y = 20x?
OlgaM077 [116]

Answer:

0

Step-by-step Explanation

y = 20x \\  \\ y = 20x + 0 \\  \\ equating \: it \: with \\ y = mx + b \\  \\ b = 0 \\  \\ y - intercept \:  = 0

7 0
3 years ago
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Một lô hàng chứa rất nhiều sản phẩm, trong đó tỷ lệ sản phẩm loại tốt là 70%. chọn ngẫu nhiên từ lô hàng ra 5 sản phẩm. gọi X là
den301095 [7]

trả lời : lâp bảng

X=0 thì xác suất lấy ra được sản phẩm tốt là 5*30%=1,5%

X =1 thì xác suất lấy ra được là 1* 70%*4*30%=0,84%

X=2 thì xác suất lấy ra được sản phẩm tốt là 2*70%*3*30%=1,26%

X=3 thì xác suất lấy ra được sản phẩm tốt là 3*70%*2*30%=1,26%

X=4 thì xác suất lấy ra được sản phẩm tốt là 4*70%*1*30%=0,84%

X=5 thì xác suất lấy ra được sản phẩm tốt là 5*70%=3,5%

X 0 1 2 3 4 5

P 1,5 0,84 1,26 1,26 0,84 3,5

b,

E(x)= 1,5*0+ 0,84*1+1,26*2+1,26*3+0,84*4+3,5*5=28

E(x^2)=1,5*0^2+0,84*1^2+1,26*2^2+1,26*3^2+0,84*4^2+3,5*5^2=118,16

===> V(x)= (E(x))^2-E(x^2)=28^2-118,16=665,84

8 0
3 years ago
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