Answer:
Step-by-step explanation:
1. (sq root of) a^2 if a>0 => √(a^2) = ±a
2. (sq root of) 36x^2 if a>0 => ±6x
Answer:
Initially, Anglea has $6*w in total.
Then she buys N books, at $17 each, then the total cost of the books is: N*$17
After that, she had left $w.
a) This means that:
$6*w - N*$17 = $w
Now we can isolate the variable N in one side of the equation:
N*$17 = $6*w - $w = $5*w
N = ($5/$17)*w
N = (5/17)*w
That is the equation that tells the number of books Angela bought in terms of w.
b) Now we just need to replace the w by 34 in the above equation:
N = (5/17)*34 = 10
If w = 34, Angela bought 10 books.
To find the cost of labor for one worker, you multiply the wage by the number of hours worked.
40 * 8 = 320
Because there are two workers, now you double it.
320 * 2 = 640
To find the percentage of the revenue that this is, you do the labor cost divided by the revenue.
640 / 2000 = 0.32
Move the decimal two places to the right to get the percentage.
0.32 = 32%
The labor cost is 32% of the revenue.
Answer:1.24
2.52
3.20
Step-by-step explanation:
