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Brrunno [24]
3 years ago
7

For which real numbers x and y is it true that x + y = x+y?

Mathematics
1 answer:
Alchen [17]3 years ago
6 0
By the general application of cumulative property of addition :

x + y = y + x

For sure
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What is the equation of the line that passes through the point (5,-2) and has a slope of -2\5
mr Goodwill [35]

Answer:

The answer is

<h2>y =  -  \frac{2}{5} x \\</h2>

Step-by-step explanation:

To find an equation of a line when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

where

m is the slope

( x1 , y1) is the point

From the question the point is ( 5 , - 2) and slope is - 2/5

The equation of the line is

y + 2 =  -  \frac{2}{5} (x - 5) \\ y + 2 =  -  \frac{2}{5} x + 2 \\ y =  -  \frac{2}{5} x + 2 - 2

We have the final answer as

y =  -  \frac{2}{5} x \\

Hope this helps you

7 0
3 years ago
When 30% of a number is added to the number, the result is 130.
Virty [35]

Answer:

100

Step-by-step explanation:

100% of a number + 30% of a number is 130% of a number.

This means 130 = 1.3x.

Now we simplify:

130=1.3x

/1.3   /1.3

100=x

x=100

Therefore, the number is 100.

4 0
3 years ago
PLEASE HELP 15 POINTS...PLEASE HELP
Semenov [28]

Answer:

-2/3

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
What number is the opposite of the number 0
Klio2033 [76]

Answer:

it is the second one, number zero does not have an opposite

Step-by-step explanation:

7 0
3 years ago
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Given that Y= 3x – 8, what is the sum of the gradient and intercept of the linear equation? *
chubhunter [2.5K]

Answer:

- 5

Step-by-step explanation:

The equation of a line in slope - intercept form is

y = mx + c ( m is the slope (gradient) and c the t- intercept )

y = 3x - 8 ← is in slope- intercept form

with gradient m = 3 and y- intercept c = - 8 , thus

m + c = 3 + (- 8) = 3 - 8 = - 5

5 0
3 years ago
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