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Veseljchak [2.6K]
3 years ago
8

A rabbit (primary consumer) was preyed upon and consumed by a fox (secondary consumer). Before being consumed, the rabbit had ea

ten leaves and berries. The leaves and berries contained 20 kJ of energy. How many kilojoules of the energy from the leaves and berries did the fox obtain after eating the rabbit?
Mathematics
1 answer:
rodikova [14]3 years ago
8 0

Answer:

2kJ

Step-by-step explanation:

Use the 10 percent rule:

20kJ=20,000J

20,000J*0.10=2,000J=2kJ

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(x-4y)(x-2y) product
son4ous [18]
X^2-6xy+8y^2 I believe is the answer, I hope this helps!
6 0
3 years ago
What is the form to solve this problem 5+9x2=<br>???​
Anit [1.1K]

Answer:

First, you would multiply 9 x 2 that would give you 18. Then you would add 5 and that would give you 23. The answer would be 23

Step-by-step explanation:

5 0
4 years ago
What is the area of the figure?
Vanyuwa [196]

Answer: 42.5 m

Step-by-step explanation:

Split the figure into a rectangle and a triangle.

Find the areas of the rectangle and the triangle seperately and add them together.

Rectangle: 7 x 5 = 35

Triangle: 5 x 3/2 = 7.5

35+7.5= 42.5m

8 0
3 years ago
Read 2 more answers
Select the correct answer.
GuDViN [60]

The surface area of the pencil is the amount of space it covers

The surface area of the pencil is 61 square centimeters

<h3>How to determine the surface area?</h3>

The given parameters are:

H = 20 cm

L = 0.5 cm

The surface area (SA) is then calculated as:

SA = 6LH + 3\sqrt 3L^2

This gives

SA = 6 * 0.5 * 20 + 3\sqrt 3 * 0.5^2

Evaluate the sum

SA = 61

Hence, the surface area of the pencil is 61 square centimeters

Read more about surface area at:

brainly.com/question/6613758

8 0
2 years ago
What is the value of y in the solution to the following system of linear equations?
Leviafan [203]

ANSWER

y=12


<u>EXPLANATION</u>

One way is to make x the subject in one equation and substitute into the other.


2x+2=y


\Rightarrow 2x=y-2


\Rightarrow x=\frac{y}{2}-1--(1)


The second equation is

2y=5x-1--(2)


Let us put equation 1 in 2

\Rightarrow 2y=5(\frac{y}{2}-1)-1

\Rightarrow 2y=\frac{5y}{2}-5-1


\Rightarrow 2y=\frac{5y}{2}-6


Multiplying through by 2 gives;


\Rightarrow 4y=5y-12



\Rightarrow 4y-5y=-12


\Rightarrow -y=-12


\Rightarrow y=12









6 0
3 years ago
Read 2 more answers
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