The answer is 1.
Hope this helps ya.
Answer:
57 mph
Step-by-step explanation:
Let b represent Bob's speed on the trip. Then his time is ...
time = distance/speed
Bob's time = 230/b
Then John's speed is b+8, and his time is ...
John's time = 230/(b+8)
The difference of their times is 1/2 hour:
Bob's time - John's time = 1/2
230/b -230/(b+8) = 1/2 . . . substitute the expressions for time
460(b+8 -b) = b(b+8) . . . . . multiply by 2b(b+8)
b^2 +8b -3680 = 0 . . . . . . .put in standard form
(b +4)^2 -3696 = 0 . . . . . . . add 16-16 to complete the square
b = -4 +√3696 ≈ 56.795 . . . solve for positive b
Bob's drove about 57 mph on the trip.
Answer:
Step-by-step explanation:
The Explanatory variable otherwise know as the independent variable in the study is the Ginkgo biloba administered to the students in doses of 250,500 and 1000 milligrams everyday for one month.
answer.
It will be 750 units
Step-by-step explanation:
we multiply the ten by sevety five and the answer is 750
The answer to that is 18. Since your power is just 1, it is itself.
