19. 19.31 times 40=$772.4
20. 52 times 772.4=$40,164.8
weekly = 40 times 19.31
yearly =weekly times 52 or 19.31 times 40 times 52
21. 15.07 times 40=$602.8
22. 52 times 602.8=$31,345.6
weekly = 40 times 19.31
yearly =weekly times 52 or 15.07 times 40 times 52
23. Monica yearly-Chris yearly=40,164.8-31,345.6=$8816.2
(n-6)*2=2
or i think it can be (6-n)*2=2
Answer:
22 miles per hour
Step-by-step explanation:
Against the current, the boat's rate of travel is ...
(120 mi)/(6 h) = 20 mi/h
With the current, the boat's rate of travel is ...
(120 mi)/(5 h) = 24 mi/h
___
The sum of boat speed (b) and current speed (c) is 24 mph. The difference is 20 mph. This lets us write the equations ...
b + c = 24
b - c = 20
Adding these two equations together, we get ...
2b + 0c = 44
b = 22 . . . . . . . . divide by 2
The rate of the boat in still water is 22 miles per hour.
Answer:
-1.25
Step-by-step explanation:
t÷3-1÷2 = t÷1+3÷9
2t-3÷6 = 9t+3=9
18t - 27 = 54 + 18
18t -54t = 18 + 27
-36t = 45
Divide through by -36
t = -1.25