Answer:
I really don't know so sorry
Answer:
two points where the line is directly on them are (-3, -2) and (0, 3)
to find the slope you do rise/ run
so start at the first point and count up and right to the second. you'll count up 5 units and right 3 units. so the slope is 5/3
Step-by-step explanation:
68.40 divide 6 = 11.4
41.80 divided 4= 10.45
Plan B is lower fee per lesson
Answer is so 100-8 is square root of 100
A=1/10, b=1/12, c=1/15 (these are the rates for each worker...)
1.)
2(1/10)+4(1/12)+t/15=1
1/5+1/3+t/15=1
(3+5+t)/15=1
3+5+t=15
8+t=15
t=7
So it would take c 7 hours to finish the job.
2.)
1/40-1/60
(3-2)/120
1/120
The drain rate is 1/60. So you will need to find t when the tank is empty, while starting at 2/3 capacity...
2/3-t/60=0
(40-t)/60=0
40-t=0
t=40
It would take 40 minutes to empty the tank when it is 2/3 full.