The number of fish in the lake follows an arithmetic sequence
The number of fish in the lake the second year is 7800, and it is represented by f(2)
The model of the number of fish is given as:
Such that:
Set n = 1, to calculate f(2)
Substitute 1 for n in the given model
So, we have:
Simplify, by adding 1 and 1
Substitute 8200 for f(1)
Subtract 400 from 8200
Hence, the value of f(2) is 7800
Read more about arithmetic sequence at:
brainly.com/question/25759461
12. 90/15 is 6. 6x2 is 12.
A
three times x = 3 × x = 3x
less 5 means subtract 5 from 3x, hence
3x - 5 → A
First car: $10 + 3 every mile
Second car: $20 + 2 per every mile
For the part that says "Write an equation that represents the cost of
each car service and determine when they cost the same.", find the LCM of 13 and 22.
Answer:
1 - x - 2 + 2x = 10x - 25 - x
Step-by-step explanation:
We have the expression: 1 - (x+2) + 2x = 5(2x - 5) - x
Applying the distributive property we get:
1 - x - 2 + 2x = 10x - 25 - x
So, the following equation is the result of that step: 1 - x - 2 + 2x = 10x - 25 - x