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Dima020 [189]
3 years ago
5

There are 21 animals living in the barn. Some are chickens and some are horses. There are 46 legs in all. How many chickens and

how many horses are in the barn?
Mathematics
1 answer:
astra-53 [7]3 years ago
8 0

Answer:

7 horses,and 6 chickens

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line y = 2x+1 is transformed by a dialation with a scale factor of two and centered at (0,-4). what is the equation of the image
Gekata [30.6K]

Answer: y = 2x + 6

Step-by-step explanation:

Here the equation of line,

y = 2x + 1

y-intercept of the line is, (0, 1)

And, the slope of the line is 2.

Since, If a point (x,y) is dilated by a scale factor k about a point (a,b),

Then transformed point are get by,

(x,y)\rightarrow (k(x-a)+a, k(y-b)+b)

Thus, The transformed point of point (0,1) when dilation is occur by the scale factor 2 about the point (0,-4),

(0,-4)\rightarrow (2(0-0)+0, 2(1+4)-4)

(0,-4)\rightarrow (0, 6)

Thus, the point of the new line is (0,6)

And, the slope of the new line is 2 ( because in the dilation, the slope of the line does not change)

Thus, the equation of new line,

(y - 6) = 2 (x - 0)

y - 6 = 2x

y = 2x + 6


5 0
3 years ago
If two orders are​ selected, find the probability that they are both from Restaurant D. a. Assume that the selections are made w
Katena32 [7]

Answer:

The probability is

nothing.

8 0
3 years ago
A given line has the equation 10x+2y=-2.
Iteru [2.4K]

The equation of a line of the slope-intersection form is given by:

y = mx + b

Where:

m: It's the slope

b: It is the cut-off point with the y axis

If two lines are parallel then their slopes are equal.

We have the following line:

10x + 2y = -2\\2y = -10x-2\\y = -5x-1

Thus, the slope of the line is -5.

Therefore a parallel line is of the form:

y = -5x + b

We replace the point (0,12)

12 = -5 (0) + b\\12 = b

Finally, the equation is of the form:

y = -5x + 12

Answer:

5x + y = 12

8 0
3 years ago
If Hillary can read 560 words in 7 minutes how many words can Hilary read in 1 minute
Elza [17]
To find the number of words she can read per minute, we would do 560 divide by 7 minutes

560/7 = 80 words per minute

Hope this helps
3 0
3 years ago
Read 2 more answers
Geometry B Unit 6: Surface Area and Volume, Lesson 10: Surface Area and Volume Unit Test?
Blababa [14]

Answer:

B

Step-by-step explanation:

Euler's formula for polyhedra states that

F + V - E = 2

where F is faces, V is vertices and E is edges

Substitute the values given and solve for F, that is

F + 13 - 26 = 2

F - 13 = 2 ( add 13 to both sides )

F = 15 → B

5 0
3 years ago
Read 2 more answers
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