A) x * y = 12
B) x + y = -7
A) x = 12 / y
Substitute this into B
B) 12/y + y = -7
multiplying both sides by "y"
12 + y^2 = -7y
y^2 + 7y + 12 = 0
y = -4
and from equation B we calculate x as -3
Answer:
42 animals
Step-by-step explanation:
The formula for Exponential decay is given as
y = a (1 - r)^t
Where
y = Population after time t
a = Initial population or size = 60 animals
r = rate of decay = 3.5 % per year = 0.035
t = Time = 10 years
Hence,
y = 60 × (1 - 0.035)¹⁰
y = 60 × 0.7002822742
y = 42.016936449 animals
Approximately = 42 animals
Therefore, the population of that species be after 10 years is 42 animals
Answer:
120
Step-by-step explanation:
This is going to be a permutation because order matters.
The permutation formula is
Answer:
Perimeter = 64m
Step-by-step explanation:
I can only help for Perimeter.
12+20+12+8+8+4=64m
50x+80y=1750 and y = x+4 can be used to determine the number of small boxes and large boxes of paper shipped where x represent the number of small boxes of paper and y represent the number of large boxes of paper.
Step-by-step explanation:
Given,
Weight of small box of paper = 50 pounds
Weight of large box of paper = 80 pounds
Total weight of boxes = 1750 pounds
Let,
x represent the number of small boxes of papers.
y represent the number of large boxes of papers.
According to given statement;
50x+80y=1750
y = x+4
50x+80y=1750 and y = x+4 can be used to determine the number of small boxes and large boxes of paper shipped where x represent the number of small boxes of paper and y represent the number of large boxes of paper.
Keywords: linear equation, addition
Learn more about linear equations at:
#LearnwithBrainly