Answer:
Answer:
Cost of one (chicken) = $
8
Cost of one (duck) =
$
5
Explanation: heyy there :)
Let c be (chickens) and d be (ducks)
Given :
50
�+
30
�
=
$
550
Dividing both sides by 10,
5 + 3 = 55 Eqn (1)
44 + 36 = $ 532
11 + 9 = 133 Eqn (2)
Multiply Eqn (1) by 3 to eliminate y term when subtraing Eqn (1) from (2).
Then a Eqn (1) becomes, 15 + 9 = 165 Eqn (3)
Subtracting Eqn (2) from (3),
(15 - 11) = (165 - 133)
4 = 32 or = $ 8.
Substituting value of in Eqn (1),
(5 * 8) + 3 = 55
3 = 55 - 40 = 15
= 15 / 3 = $ 5
Yes, in this way we become more open minded and take in validated ideas of others.
Answer:Human Impacts on the Environment Humans impact the physical environment in many ways overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Explanation:
Answer: A 12 foot ladder would be the minimum length that is going to be required by a worker to access a landing nine feet above the adjacent floor
So with the standard terms the ladder should be at least 1 unit away for 4 feet of height so, keeping in mind the unitary method:
Height Away from base
4 1
9 x
The amount a 9 feet ladder should be away is:
x = 2.5 feet away from the base
Using the Pythagoras Theorem:
a² + b² = c²
place the values for the right triangle (a = 2.5, b = 9):
2.5² + 9² = c²
= 9.34 feet
Now, we know that the length of the ladder should always be more than the height you are trying to reach:
9.34 + 2 = 11.34
The minimum height of the ladder should be 11.34 feet. As a result, rounding off would result in a 12 foot ladder.
