Answer:
b
Explanation:
a. (x-2)/(x-1) =(7/9-2)/(7/9-1)
=<u>-</u><u>1</u><u>1</u><u>/</u><u>9</u><u> </u> =11/2 >x
-2/9
b. <u>7</u><u>/</u><u>9</u><u>+</u><u>1</u> =<u>1</u><u>6</u><u>/</u><u>9</u> =-8<x
7/9-1 -2/9
c. <u>1</u><u> </u><u> </u> =9/7 >x
7/9
d. <u>(7/9+1)</u><u> </u> =<u>16/9 </u><u>=</u> 16/7 >x
7/9 7/9
Answer:
Answer of question 1 :
Explanation:
Let x be the legs of ducks
And y be the legs of cows
According to the question,
2x + 4y = 52...…..(i) ( as ducks ahs two legs and as cows has 4 legs)
As he has 21 animals in total so,
x + y = 21...…..(ii)
We have make the equation. We will solve them by eliminatory method or substitution method. Here, I'll go for substitution method.
From equation (ii)
x = 21 - y....…..(iii)
Putting the value of x in equation (i),
2x + 4y = 52
2( 21 - y ) + 4y = 52
42 - 2y + 4y = 52
2y = 52 - 42
y = 10/2
y = 5 ( He has 2 cows)
putting the value of y in equation (ii)
x + y = 21
x + 5 = 21
x = 21 -5
x = 16 ( He has 16 ducks)
Answer:
A habitat
Explanation:
A habitat is a natural environment which shelters living organisms of the same species. In a species habitat, species can be sheltered, fed and can also mate to reproduce offsprings. A habitat has both physical and biological characteristics. Representing the physical factors are soil, moisture, temperature range and intensity of light. While those representing the biological factors are the presence of prey and predators as well as other things. Most organisms or species adapt to strive which others might try to live up to their inbuilt habitat needs. A habitat does not necessarily refer to geographical area but can also be within the soil or inside of a branch or stem or other things which a living organism can live in. Homeostasis is essential in living organisms in a habitat because it helps to control and maintain them in optimum conditions which might have been necessary through adversary or habitat change.
Answer:
what is the question? is it supposed to be a graph?
