Plz plz somebody help me i will mark you has brainlest pls its due at 8:00 its like 7:43
1 answer:
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Answer:
(x, y ) = ( ,
)
Step-by-step explanation:
given the 2 equations
4x + 2y = 7 → (1)
y = 5x → (2)
Substitute y = 5x into equation (1)
4x + 2(5x) = 7
4x + 10x = 7
14x = 7 ( divide both sides by 14 )
x = =
substitute this value into equation (2)
y = 5 × =
Answer:
- Growth
- 22%
Step-by-step explanation:
<u>Given function:</u>
<u>Initial population size is when t = 0</u>
- P(0) = 400(1.22)⁰ = 400(1) = 400
<u>The multiple of 1.22 is applied every year, so the ratio of change is:</u>
- 1.22 = 122% = 100% + 22%
This is an exponential growth which represents 22% annual growth.