Abird leaves its nest and travels 18 miles per hour downwind for x hours. on the return trip, the bird travels 3 miles per hour slower and has 5 miles left after x hours. what's the distance of the entire trip? how long does the entire trip take?

Total time taken in entire trip = 220 minutes

Step-by-step explanation:

For Downwind  : Bird speed = 18 miles/hour

                            time taken = x hours

                       total distance = speed x time taken

                                               =  18 (x) = 18x

for returning  speed   3 miles per hour slower that is 18-3 = 15 miles per hour

time taken = x hours

and distance traveled =  5 miles lesser than previous that is 18x -5

that is from above

15x =  18x -5

15x-18x = -5

-3x = -5

3x =5

x = hours or 100 mins.

total distance taken for   returning  =   18 () = 30  miles

time taken for return = hours or 120 minutes

therefore total time taken for the entire journey = 100 +120 = 220 minutes.

7. 153.86 ft

8. 12.56 ft

9. 78.5 m

10. 379.94 in

11. 132.665 m

12. 12.56 yd

13. 226.865 ft

14. 113.04 ft

15. 63.585 ft

16. 254.34 m

17. 50.24 cm

step-by-step explanation:

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what grade level is this? need to know so i can look in my old textbooks!