swiftskier96 Group Title Help!?!?!?!?!? 10. The amount of oil used by a ship traveling at a uniform speed varies jointly with the distance and the square of the speed. The ship uses 30 barrels of oil in traveling 85 miles at 42 mi/h. How many barrels of oil are used when the ship travels 26 miles at 54 mi/h? Round your answer to the nearest tenth of a barrel, if necessary. (1 point) 2.3 barrels 15.2 barrels 49.6 barrels 9.2 barrels one year ago one year ago

1. swiftskier96 Group Title

@mathstudent55

2. swiftskier96 Group Title

@amistre64 @Callisto @Hero @Mertsj @whpalmer4 @ZeHanz

3. swiftskier96 Group Title

@kropot72

4. Mertsj Group Title

Amount of oil = k(distance)(speed)^2

5. Mertsj Group Title

Plug in the given ingormation and find k.

6. swiftskier96 Group Title

I got Amount of oil = k(26)(54)^2 Im not sure what to do after i solve (26)(54)^2. I got 75,816. So now its Amount of oil = 75,816k. Now what?

7. Mertsj Group Title

30=k(85)(42)^2

8. Mertsj Group Title

Find k

9. swiftskier96 Group Title

I got A: 2.3

10. swiftskier96 Group Title

Is that right?