Answer:
27 chickens
Step-by-step explanation:
A chicken farmer also has cows for a total of 30 animals
Both animals have a total of 66 legs
Let a represent the number of chicken
Let b represent the number of cows
a + b= 30........equation 1
Since a chicken has only two legs and a cow has four leg then, the expression can be represented as
2a + 4b= 66........equation 2
From equation 1
a + b= 30
a = 30-b
Substitute 30-b for a in equation 2
2a + 4b= 66
2(30-b) + 4b= 66
60 - 2b + 4b= 66
60 + 2b= 66
2b= 66-60
2b= 6
b= 6/2
b= 3
Substitute 3 for b in equation 1
a + b = 30
a + 3=30
a= 30-3
a= 27
Hence the farmer has 27 chickens
Answer: C) f ≥ 35s - 200
Step-by-step explanation:
Hi, to answer this question we have to write an equation:
She needs 35 frames (f) per second (s) ( we have to multiply the number of frames by the number of seconds) f ≥ 35s
She has already 200 frames (since we already have, we can subtract that to the needed frames per second)
f ≥35s -200
Feel free to ask for more if needed or if you did not understand something.
Answer: C
<u>Step-by-step explanation:</u>
4d - 6 < 18
<u> +6</u> <u>+6 </u>
4d < 24
d < 6
Graph: ←----------------o 6
The answer would be 48...
