342-72=270
270-72=198
198/2=99
Therefore the width is 99
Answer:
Food chain shows how energy transferred from one living organ to another via food. most important to learn how food chain works so that we know what are the important living organisms that make up the food chain and how ecology is balanced
Solution :
For the bigger rectangle
Width of bigger rectangle = W
Length of bigger rectangle, L = 2W
For the smaller rectangle
Width , w = W+4
Length, l = L = 2W
Area, a =120 
Now we know,
Area = length x width
We get, either 
(rejecting)
or 
∴ length of the bigger rectangle, 
= 2(6)
= 12 m
Length of the smaller rectangle, 
= 2(6)
= 12 m
Hence, the length of the two gardens is 12 m.
Answer:
P(0,0) = 2/12 times 1/11 = 1/66
Step-by-step explanation:
For probability questions, think of each event happening separately, it makes the maths easier to understand. For example, in this question, do not think of the two boys taking a fruit at the same time - that makes the maths complicated
.
Let Daniel take a fruit first, then Sean can take a fruit. There are two parts to consider.
P
r
o
b
a
b
i
l
i
t
y
=
number of desirable outcomes
total number of possible outcomes
For Daniel: there are 12 different pieces of fruit in the bowl, he just takes one without choosing a specific fruit. (random)
The chance that Daniel takes an orange is
2
12
Of the 12 pieces of fruit. 2 are oranges.
Now Sean: the numbers of fruit in the bowl have changed. There are now only 11 pieces of fruit in the bowl, and only 1 is an orange.
The chance that Sean takes an orange is
1
11
