<span> -k - (-8k) = -k + 8k = 7k</span>
Answer:
No answer
Step-by-step explanation:
5x-20-X+9
7x-20+9
7x-11
Density = mass / volume
volume of 1 can = 12 * 40 = 480 cm^3
1.1 = mass / 480
mass = 528 grams Answer
Mary Purchase shares = $80,000
Mary Sells shares = $55,000
Loss she can claim for = $80,000 - $55,000
= $ 25,000
Let same number of hours = x,
since the salary earned is also the same, then
Salary of supervisor A = $25x
Salary of supervisor B = $20(30)+$30(x-30)
Equating
25x=600+30(x-30)
30x-25x=900-600
5x=300
x=60 hours
Check:
Salary of supervisor A = 25*60=1500
Salary of supervisor B = 20*30+30*(60-30)=600+900=1500, ok.