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3 years ago

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

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3 years ago

I dont know, i just did this for reason

mihalych1998 [28]

Hello, how is your day? :)

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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

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

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