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devlian [24]
3 years ago
8

Brittany picked 5 oranges. She shared them equally between her 7 brothers. What fraction of an orange did each brother receive?

A. 1/7 B. 7/5 C. 5/7 D. 1/5
Mathematics
2 answers:
Daniel [21]3 years ago
6 0

Answer:

C 5/7

Step-by-step explanation:

you have to split the 5 oranges between the 7 brothers, so you would do 5/7

5 split between 7 is the same as 5/7

maks197457 [2]3 years ago
6 0

Answer:5/7

Step-by-step explanation:

If you take each orange and cut them into 7 pieces then you could pass out one piece of each 1/7 of the oranges to each brother. You would do this 5 times until each brother had 5/7 and all the oranges would be passed out to the brothers.

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What is the slope-intercept form of 4x+5y=10
Annette [7]

Answer: The slope intercept form is  y= -4/5 + 2

Step-by-step explanation:

4x +5y = 10

-4x            -4x

         5y= 10- 4x  divide both sides by 5

y= 2-4/4x write this in slope intercept form

y= -4/5 + 2

   

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3 years ago
Simplify 8/10 to find the sum/product solve the problem
slamgirl [31]
8/10 simplified is 4/5
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What is the slope and point of y-1=-4(x+3)
rodikova [14]

Answer:

M= -4

Point (3,1)

Step-by-step explanation:

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4 0
3 years ago
Suppose we roll a fair die and let X represent the number on the die. (a) Find the moment generating function of X. (b) Use the
Likurg_2 [28]

Answer:

(a)  moment generating function for X is \frac{1}{6}\left(e^{t}+e^{2 t}+e^{2 t}+e^{4 t}+e^{5 t}+e^{6 t}\right)

(b) \mathrm{E}(\mathrm{X})=\frac{21}{6} \text { and } E\left(X^{2}\right)=\frac{91}{6}

Step-by step explanation:

Given X represents the number on die.

The possible outcomes of X are 1, 2, 3, 4, 5, 6.

For a fair die, P(X)=\frac{1}{6}

(a) Moment generating function can be written as M_{x}(t).

M_x(t)=\sum_{x=1}^{6} P(X=x)

M_{x}(t)=\frac{1}{6} e^{t}+\frac{1}{6} e^{2 t}+\frac{1}{6} e^{3 t}+\frac{1}{6} e^{4 t}+\frac{1}{6} e^{5 t}+\frac{1}{6} e^{6 t}

M_x(t)=\frac{1}{6}\left(e^{t}+e^{2 t}+e^{3 t}+e^{4 t}+e^{5 t}+e^{6 t}\right)

(b) Now, find E(X) \text { and } E\((X^{2}) using moment generating function

M^{\prime}(t)=\frac{1}{6}\left(e^{t}+2 e^{2 t}+3 e^{3 t}+4 e^{4 t}+5 e^{5 t}+6 e^{6 t}\right)

M^{\prime}(0)=E(X)=\frac{1}{6}(1+2+3+4+5+6)  

\Rightarrow E(X)=\frac{21}{6}

M^{\prime \prime}(t)=\frac{1}{6}\left(e^{t}+4 e^{2 t}+9 e^{3 t}+16 e^{4 t}+25 e^{5 t}+36 e^{6 t}\right)

M^{\prime \prime}(0)=E(X)=\frac{1}{6}(1+4+9+16+25+36)

\Rightarrow E\left(X^{2}\right)=\frac{91}{6}  

Hence, (a) moment generating function for X is \frac{1}{6}\left(e^{t}+e^{2 t}+e^{3 t}+e^{4 t}+e^{5 t}+e^{6 t}\right).

(b) \mathrm{E}(\mathrm{X})=\frac{21}{6} \text { and } E\left(X^{2}\right)=\frac{91}{6}

6 0
4 years ago
4 The width of a rectangular dance floor
Brilliant_brown [7]

Answer:

\boxed{\sf a. \ 6x + 5}

Given:

f(x) = -2x + 5

To Find:

f(-3x)

Step-by-step explanation:

\sf Evaluate \ f(x) \ by \ substituting \ in \ the \\ \sf value \ of \ x = -3x \ into \ f(x): \\ \sf f( - 3x) = -2( - 3x) + 5 \\ \\ \ \ \ \ \ \ \ \ \ \ \ \  \sf =  6x + 5

6 0
4 years ago
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