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Nonamiya [84]
3 years ago
11

the sum of two rational numbers is 2/5. of one of the rational number is -3/7 then find the other rational number ​

Mathematics
1 answer:
MrRa [10]3 years ago
6 0

Answer:

-29/35

Step-by-step explanation:

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helpppp plsssss(I’ll give 80 pointssss
lozanna [386]

Answer:

-4 + -6 = -10

Step-by-step explanation:

From the line at negative 4 it goes to negative 10 you need to add six to four to make ten. Though since it is negative numbers we add a negative 6

7 0
3 years ago
I dont know, i just did this for reason
mihalych1998 [28]

Hello, how is your day? :)

7 0
3 years ago
For her birthday, Monica can invite 6 of her 15 student friends to join her at a theme park. If she chooses to invite friends at
svlad2 [7]

Answer:

B. 1 out of 5,005

Step-by-step explanation:

Given

Number of Friends = 15

Required

Probability of selecting 6 friends

The first step is to calculate the number of ways 6 friends can be selected

The keyword in the above statement is selection;

This implies combination;

The number of ways is calculated as follows;

\left[\begin{array}{c}n&r&\end{array}\right] = \frac{n!}{(n-r)!r!}

Where n = 15 and r = 6

\left[\begin{array}{c}n&r&\end{array}\right] = \frac{n!}{(n-r)!r!}

becomes

\left[\begin{array}{c}15&6&\end{array}\right] = \frac{15!}{(15-6)!6!}

\left[\begin{array}{c}15&6&\end{array}\right] = \frac{15!}{9!6!}

\left[\begin{array}{c}15&6&\end{array}\right] = \frac{15 * 14 * 13 * 12 * 11 *10 * 9!}{9! *6 * 5 * 4 * 3 * 2 * 1}

\left[\begin{array}{c}15&6&\end{array}\right] = \frac{15 * 14 * 13 * 12 * 11 *10}{6 * 5 * 4 * 3 * 2 * 1}

\left[\begin{array}{c}15&6&\end{array}\right] = \frac{3603600}{720}

\left[\begin{array}{c}15&6&\end{array}\right] =5005

Hence, there are 5005 ways of selecting 6 from 15 friends

Since, there's only one way of selecting the 6 named friends

Then, the probability is 1 out of 5,005

3 0
3 years ago
Help me please 15 points
Irina18 [472]
I can’t read it clearly but since he spinned it it prolly had something to do with rotation
7 0
3 years ago
Read 2 more answers
Find the greatest common factor of 15x 2 y 3 and -20x 3 yz.
vekshin1
Multiply the GCF of the numerical part 3 and the GCF of the variable part x^2y to get 
3x^2y. 
7 0
3 years ago
Read 2 more answers
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