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Alekssandra [29.7K]
3 years ago
15

The sum of two rational number is -3 .If one of them is-15/7 find the other. step explanation ​

Mathematics
2 answers:
Vesna [10]3 years ago
7 0

Answer:

\frac{-6}{7}

Step-by-step explanation:

Let the other number be 'x'

x + \frac{-15}{7} = -3

         x = -3 +  \frac{15}{7}

           = \frac{-3*7}{1*7} +\frac{15}{7}\\\\=\frac{-21}{7}+\frac{15}{7}\\\\= \frac{-21+15}{7}\\\\= \frac{-6}{7}

PSYCHO15rus [73]3 years ago
6 0

Sum = -3

First no. = -15/7

Second no. = (-3) - (-15/7)

= -3 + 15/7

= -21/7 + 15/7

= (-21 + 15)/7

= -6/7

The second no. is -6/7.

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I NEED HELP PLEASE ASAP!!​
sleet_krkn [62]

Option C:

The value of x is 27.

Solution:

Given exterior angles are 56°, 2x°, 85°, 57° and 4x°.

<em>Sum of exterior angles of a polygon = 360°</em>

⇒ 56° + 2x° + 85° + 57° + 4x° = 360°

⇒ 198° + 6x° = 360°

Subtract 198° from both sides of the equation.

⇒ 6x° = 162°

Divide by 6 on both sides, we get

⇒ x° = 27°

⇒ x = 27

The value of x is 27.

Option C is the correct answer.

5 0
3 years ago
Evaluate the expression w 2 - v + 1 for w = -2 and v = -8.
Aleksandr [31]

Answer:

Is the w2, w(2) or

{w}^{2}

?

If it's w(2) the answer is -4--8+1=-4+8+1=5

if it's w^2 then the answer would be 4--8+1=4+8+1=13

4 0
3 years ago
PLD HELP ME IM STUCK
miv72 [106K]

Answer:

I think it's A: Similar - AA

Step-by-step explanation:

We know that ∠K≅∠N & ∠L≅∠P, so that gives us 2 sets of congruent angles

7 0
3 years ago
If csc x = −5, find csc(−x) find the period and horizontal shift
ella [17]

Answer:

\csc (-x) = - \csc x = - ( - 5) = 5

Period is 2π

Horizontal shift = 0

Step-by-step explanation:

We know that \sin (-x) = - \sin x and as \csc x = \frac{1}{\sin x}, so, we can write \csc (-x) = - \csc x

Therefore, the if \csc x = - 5 then \csc (-x) = - \csc x = - ( - 5) = 5 (Answer)

Now, the period of \csc x is 2π, hence the period of \csc (- x) is also 2π.  (Answer)

Again. \csc ( - x) = \csc (-x + 0), hence, the horizontal shift of \csc (- x) is 0. (Answer)

6 0
3 years ago
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Total money in account=125+25n
7 0
4 years ago
Read 2 more answers
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