5y-30=-5y+30
add 30 to both sides
5y = -5y+60
add 5y to both sides
10y = 60
divide both sides by 10
y = 6
<em>hope this helps!</em>
The answer is 14 weeks
<span>60 + 30w = 480
30w = 480 - 60
30w = 420
w = 420 / 30
w = 14</span>
You haven't provided the $ or % that he gets, but I will attempt to use algebraic terms to explain it instead.
If the salesman sells a car for $<em>a</em> and gets <em>b</em>% of the sale price as commission, then what you need to do is divide the <em>a</em> by 100, then multiply it by <em>b</em> to find out <em>b</em>% of <em>a</em>. This will be the commission that he will earn.
<em>a </em>/ 100 x <em>b</em> = commission earned in $
Edit
<em>You've now supplied me with the $ and %, let me explain it again.</em>
To find out the commission that he will earn, you divide 8,100 by 100 then multiply it by 9.
8,100 / 100 = 81
81 x 9 = $729 commission earned.
Answer:
1. 0 2. 130 3. -9.9
Step-by-step explanation: