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love history [14]
3 years ago
13

Can someone help me with these two

Mathematics
1 answer:
LenaWriter [7]3 years ago
4 0

Answer:

The first equation answer is 10

And the second one 6

Step-by-step explanation:

The first equation

2/5 x +3= 2/3x +1/3

2x + 15/5 = 6x+3/9 the cress cross

9(2x + 15) = 5(6x + 3)

18x + 135 = 30x +15

135-15 = 30x - 18x

120 = 12x

120/12 =12x/12

10 = x

X =10

The second one

-2.6b +4 =0.9b - 17

-2.6b - 0.9b = - 17 - 4

-2.6b + (-0.9b) = - 17 + (-4)

-3.5b = - 21

-3.5b/-3.5 = - 21 /-3.5

B= 6

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What is the equation of a line which includes points (-5, 5) and (2, 5)?
sveta [45]
<h2>Hello!</h2>

The answer is:

The equation of the line which includes the points (-5,5) and (2,5) is:

y=5

<h2>Why?</h2>

To find the line which includes the points (-5,5) and (2,5) we can use the following equation:

y-y_1=\frac{y_2-y_1}{x_2-x_1}*(x-x_1)

So, using the points (-5,5) and (2,5), we have:

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

y-5=\frac{0}{2+5}*(x-(-5))

y-5=0*(x+5)

y-5=0

y=5

We have that the equation of the line which includes the points (-5,5) and (2,5) is:

y=5

Have a nice day!

Note: I have attached a picture for better understanding.

8 0
3 years ago
pie r formula is 22/7 when we divide 22/7 it will be 3.14 and 3.14 is an irrational number and irrational number can not be form
vivado [14]

Answer:

22/7 is not pi

Step-by-step explanation:

22/7 is just a close approximation for pi, not pi itself.

If you put 22/7 into a calculator, you get:

3.142857...

While the number pi itself is:

3.1415926...

You can notice that pi is actually different than 22/7, even though the two numbers start out the same and are close to each other. Frequently in geometry, you use 22/7 as pi because it's so close and makes calculation easier.

Hope this helps!

6 0
3 years ago
I need help plz help
grin007 [14]

Answer:

12,6,0,-6,-12

Step-by-step explanation:

Plug the x values into the equation

y=-3x

y=-3(-4)=12

y=-3(-2)=6

y=-3(0)=0

y=-3(2)=-6

y=-3(4)=-12

4 0
3 years ago
Help please <br><br> x =<br><br> 4<br> 7<br> 9
insens350 [35]

360-(6+3+2=11-360=349)

sox=349

proff:349+6+3+2=360degrees

8 0
4 years ago
Which equation show the relationship between the number of hours, X, and the number of bows, y?
Alex73 [517]

The number of hours x and the number of bows y are related by the equation y = 6x.

The rel-ationship between quantities x and y is given by y = kx, where k is the constant of proportion if two quantities are proportional to one another.

The graph of y = kx is a straight line that passes through the origin.

Let k be the constant of proportion.

So, the relation between

The line is passing the number of hours x and the number of bows y is given by y = kx

The line is passing through point (1,6).

Put (x,y) = (1,6) in y = kx

6 = k(1)

k = 6

So,

y = 6x

Hence, the rel-ationship between the number of hours, x, and the number of bows, y is given by y=6x.

To know more about the rel-ationship here

brainly.com/question/15131820

#SPJ1

3 0
1 year ago
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