7r=-7/2
divide both sides by 7 to get r by itself
(7r)/(7) = (-7/2)/(7)
if you don't quite see it, think of multiplying both sides by 1/7 instead (its the same thing as dividing by 7)
(7r)*(1/7)=(-7/2)*(1/7)
r=-1/2
Answer:
1) I can use the hours and number of packages to help solve the problem
2) I go to the number 3 and go up from there (answer 45)
3) the packages a driver can deliver in a 7 hour day is 105
4)divided 15 from 120
Step-by-step explanation:
1) question 4) you find out how much packages he deilivers in an hour
2) question 4) its 15
3) question 4) divided 10 from 120 :)
The answer to the question is B
revenue = $2000
labor cost per worker working 40 hrs = 8 . 40 = 320
for 2 workers = 640
as a % of revenue = ( 640 . 100)/2000 = 32%