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Helga [31]
3 years ago
13

Farmer has 30 animals with 66 legs how many cows and chichkens

Mathematics
2 answers:
Dafna11 [192]3 years ago
6 0

Answer:

27 Chickens and 3 Cows.

Step-by-step explanation:

27*2=54 (chickens), 3*4=12 (cows), 54+12=66.

Serjik [45]3 years ago
3 0

Answer:

3 cows and 27 chickens?

Step-by-step explanation:

x is the number of cows and y is the number of chicken

x + y = 30

cow has 4 legs and chicken has 2 legs therefore

4x + 2y = 66

simultaneously,

x + y = 30 ⇒ x = 30 - y

substitute x = 30 - y in 4x + 2y = 66

4(30 - y) + 2y = 66

120 - 4y + 2y = 66

120 - 2y = 66

-2y = 66-120

-2y = -54

y = -54/-2

y = 27

x = 30 - 27

x = 3

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If the surface area of a cube is 294, whats the length of the cube?
tatyana61 [14]

Answer:

7

Step-by-step explanation:

Total number of surfaces of cube are 6.

Each surface is square.

And area of square is (side)^2

That means, total surface area will be 6 * (side)^2

From question,

294 = 6 * (side)^2 ( Surface area given)

=> 294 ÷ 6 = ( side) ^2

=> 49 = side^2

=> √49 = side

=> 7 = side

So, length of edge of cube is 7

7 0
3 years ago
A.45<br> B.30<br> C.90<br> D.180<br> E.40<br> F.55<br> G.130<br> H.50
brilliants [131]

Answer:

m<4=40

Step-by-step explanation:

Supplementary angles form 180 degrees

m<3 is vertical to the 50 degree angle which is equal.

so. m<3=50

m<5=90

90+50=140

180-140=40

m<4=40

4 0
3 years ago
Integers from 1 to 50
aivan3 [116]
...every number between 1 and 50 is an integer
6 0
3 years ago
Which two complex numbers that could have been added together to make -11+3i
irina [24]

Answer:

Step-by-step explanation:

There are an infinite number of possible solutions.

here's a few

(1 - 4i) + (-12 + 4i)

(-5.5 + 2i) + (-5.5 + i)

(-24 - 27i) + (13 + 30i)

3 0
3 years ago
If you guys can answer this then please help
s344n2d4d5 [400]

Answer:

64°

Step-by-step explanation:

First, we have to find the angle situated in R, the addition of all angles in a triangle is 180° so that means:

x + 68 + 48 = 180

x = 180-116 = 64°

Now, remember that this angle (64°) is the same as this one = ?, thanks to one property.

So basically, that angle has the same value as that one.

? = 64°

Hope it was helpful ;)

8 0
3 years ago
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