Answer:
x=-2/5
y=-1/5
Step-by-step explanation:
Get the y variables onto 1 side
Now shift the 1 over
To solve for x, we can subtract the second equation from the first equation
Plug back into the first equation we found and solve for y
0.7n+0.8n=2.1
1.5n=2.1
n=1.4
Therefore, the answer is B.
T=number of years since start of the study.
y=city´s population.
first year:
y=390,000+0.073(390,000)=390,000(1+0.073) (=418470)
Second year:
y=(390,000(1+0.073) + 0.073(390,000(1+0.073) =
=390,000(1+0.073) (1+0.073)
=390,000(1+0.073)²
(≈449,018.31)
Third year: if you calculate it you would have:
y=390,000(1+0.073)³
Fourth year: if you compute it you would have:
y=390,000 (1+0.073)⁴
t th year:
y=390,000(1+0.073)^t
Answer: y=390,000(1+0.073)^t
Answer:
10
Step-by-step explanation:
Answer:
four is the right answer i think