Hey there!
Since we don't have values for b, d, and r, we can't get a specific number for the value of a, if that makes sense. It'll be represented by these variables.
To solve, we need to make sure the equation looks like a = ? .
Subtract b from each side of the equation.
<u>a = dr - b </u>
Now we have solved for a.
Hope this helps!
In a Geometric Sequence each term is found by multiplying the previous term by a constant. This constant is 4. -2*4=-8
-8*4=-32 and so on.
If it takes 10 hours for 9 workers to mow 45 lawns, dividing the 45 lawns by 9 we see that in 10 hours one worker can mow 5 lawns. This means that in one hour, a single worker can mow 5/10=1/2 of a lawn
Log(10-4x) = log(10-3x) this means that:
10-4x = 10-3x ===> after solving we find that 4x=3x , that means x = 0