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Lena [83]
3 years ago
13

A farmer raises cows and chickens. The farmer has a total of 25 animals. One day he counts the legs of all of his animals and co

unts a total of 64 legs.
Let x = number of cows.
Let y = number of chickens.

Which system of equations can be used to solve for the number of cows and the number of chickens on the farm?
Mathematics
2 answers:
Mandarinka [93]3 years ago
8 0

4x + 2y = 25

x + y = 64

tatuchka [14]3 years ago
6 0
X = x4

And

Y = x2

Because of the fact the cows have 4 legs and chickens have 2
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Andreas93 [3]

Since the intersection is - by definition - common to both sets, we can work out the number of people that use only the fitness suite or the swimming pool.

We know that 57 people use the fitness suite, but 36 of those are already counted in the intersection. So, 57-36=21 people use only the fitness suite.

The same goes for the swimming pool: 49-36=13 people use only the swimming pool.

So, we have:

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This sums to 21+13+36=70 people. We deduce that 30 people don't use any of the features.

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3 years ago
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Pepsi [2]

Answer:

x=122°

Step-by-step explanation:

sum of all interior angles in a quadrilateral = 360°

then ,

119+105+78+m = 360

m = 58

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58+x = 180

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2 years ago
Write an equation for a line that is parallel to y + 5 = 3(x - 1) and goes through the point (3,-4)
MrRa [10]

Answer:

The  equation for a line that is parallel to y + 5 = 3(x - 1) and goes through the point (3,-4) will be:

  • y = 3x-13

Step-by-step explanation:

Given the equation

y + 5 = 3(x - 1)

Writing in the slope-intercept form

y=mx+b

where m is the slope and b is the y-intercept

y = 3(x-1) -5

y  = 3x-3-5

y = 3x - 8

Thus, the slope = m = 3

We know that the parallel lines have equal slopes.

So, the slope of a parallel line is also 3

Using the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

substituting the values m = 3 and the point (3, -4)

y-(-4)=3(x-3)

y+4 = 3x-9

y = 3x-9-4

y = 3x-13

Thus, the  equation for a line that is parallel to y + 5 = 3(x - 1) and goes through the point (3,-4) will be:

  • y = 3x-13
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Yuliya22 [10]

|x – 10| – 4 = 2x

x - 10 - 4 = 2x

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x - 2x = 14

-x = 14

x = -14

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