Answer: 10% is the correct option.
Explanation:
when energy is passed in an ecosystem from one food chain level to the next, only ten percent of the energy will be passed on.
The amount of energy at each food chain level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any food chain level is transferred to the next level, the rest is lost largely through metabolic processes as heat.
Answer: Producers is the base of a food web.
Explanation:
At the base of the food chain lie the primary producers. The primary producers are autotrophs and are photosynthetic organisms such as plants, algae, etc.
Answer: the cost per unit of gas is $0.38
Step-by-step explanation:
Let x represent the cost per unit of electricity.
Let y represent the cost per unit of gas.
During one month, a homeowner used 600 units of electricity and 100 units of gas for a total cost of $344. It means that
600x + 100y = 344- - - - - - - - - -1
The next month, 400 units of electricity and 250 units of gas were used for a total cost of $299.
It means that
400x + 250y = 299- - - - - - - - - -1
Multiplying equation 1 by 400 and equation 2 by 600, it becomes
240000x + 40000y = 137600
240000x + 150000y = 179400
Subtracting, it becomes
- 110000y = - 41800
y = - 41800/- 110000
y = 0.38
Substituting y = 0.38 into equation 1, it becomes
600x + 100 × 0.38 = 344
600x + 38 = 344
600x = 344 - 38 = 306
x = 306/600
x = 0.51
Answer:
The x intercept is (2,0)
Step-by-step explanation:
We know the slope and the y intercept so we can use the slope intercept to write the equation
y = mx+b where m is the slope and b is the y intercept
y = -3/2x + 3
We want to find the x intercept so set y = 0 and solve for x
0 = -3/2x +3
Subtract -3 from each side
-3 = -3/2x+3-3
-3 = -3/2x
Multiply each side by -2/3
-3 * -2/3 = -3/2 x * -2/3
2 =x
The x intercept is (2,0)
Answer:
The first expression is ![(-10)^{2}](https://tex.z-dn.net/?f=%28-10%29%5E%7B2%7D)
which is equal to ![(-1*10)^{2}](https://tex.z-dn.net/?f=%28-1%2A10%29%5E%7B2%7D)
which is equal to ![(-1)^{2}*(10)^{2}](https://tex.z-dn.net/?f=%28-1%29%5E%7B2%7D%2A%2810%29%5E%7B2%7D)
which is equal to
=100
The second expression is equal to ![-1*(10)^{2}](https://tex.z-dn.net/?f=-1%2A%2810%29%5E%7B2%7D)
which is equal to
=-100
therefore both the values are different.Hope this helps
Bx - 2 = k
bx = k + 2
x = (k+2)/b
Hope this helps!