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inysia [295]
2 years ago
11

I need to know question 8 I’m confused

Mathematics
1 answer:
marissa [1.9K]2 years ago
3 0

Remark

Let the pigs = p

Let the chickens = c

Givens

30 heads is another way of saying that there were 30 creatures in the barnyard. In addition each chicken has 2 legs and each pig has 4

c + p = 30

2C + 4P = 100       (2) Divide (2) by 2

C + 2P = 50           (3)  Subtract (1) from (3)

<u>C + P    = 30</u>

       P  = 20

So there were 20 pigs.

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What is 2.8×4.6 find the missing partial products
cupoosta [38]
To find each box, you have to multiply the number above the box and the number to the left of the box.

For the bottom left, we have 4 x 0.8 or 3.2.

For the bottom right, we have 0.8 x 0.6 or 0.48.
7 0
3 years ago
The area of the base b is the area of a square with sides of length 230 m. so, v =
goldfiish [28.3K]
Not completely sure what you are asking, but the area of a square with the side lengths of 230m would be 230*230=52,900.
4 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20express%20%5C%3A%20%20%5C%3A%20%5Csin%282x%29%20%20-%20%20%5Csqrt%7B3%7D%20%20%5Ccos%282x%2
gizmo_the_mogwai [7]

Answer:

α = π/3

γ = 2

x = -3π/4, -5π/12, π/4, 7π/12

Step-by-step explanation:

Easiest way to do this is in reverse.

γ sin(2x − α)

Angle sum/difference formula:

γ (cos α sin(2x) − sin α cos(2x))

Distribute:

γ cos α sin(2x) − γ sin α cos(2x)

Matching the coefficients:

γ cos α = 1

γ sin α = √3

Solve the system of equations.  Divide to eliminate γ:

tan α = √3

α is between 0 and π/2, so:

α = π/3

γ = 2

sin(2x) − √3 cos(2x) = 1

Using the identity from before:

2 sin(2x − π/3) = 1

Solving:

sin(2x − π/3) = 1/2

2x − π/3 = π/6 + 2kπ or 5π/6 + 2kπ

2x = π/2 + 2kπ or 7π/6 + 2kπ

x = π/4 + kπ or 7π/12 + kπ

x is between -π and π, so:

x = -3π/4, -5π/12, π/4, 7π/12

7 0
3 years ago
Which answer is it I’m doing my quiz rn
anyanavicka [17]

Answer:

10

Step-by-step explanation

3 x 4 = 12

8 + 12 = 20

20 / 2 = 10

8 0
3 years ago
Read 2 more answers
60% of Herbert's movies are adventure movies. He has 18 adventure movies. How many movies does Herbert have in all?
Vera_Pavlovna [14]
Data:
x (Number of movies) = ?


\frac{60}{100} *x = 18
0,6x = 18
x =  \frac{18}{0,6}
\boxed{x = 30}

Answer:
<span>Herbert have in all ?
30 movies</span>
5 0
3 years ago
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