Answer:
Step-by-step explanation:
So 8/12 + 7/8 needs to be greater than 1 foot? It is.
8/12 = 2/3
7/8 + 2/3 =
7/8 = 3*7 / 8*3 = 21 / 24
2/3 = 8*2 /8*3 = 16 / 24
Now add them
21 / 24 + 16/24 = 37/24 which is way more than 1 foot.
37/24 = 1 13/24
(B.) I think I don’t know
True using the formula allows you to find the x intercepts of the equation
Answer:
The speed of the submarine is 5 mph
Step-by-step explanation:
Let x represent the speed of the submarine.
A submarine left Hawai'i 2 hours before an aircraft carrier. If the aircraft carrier travelled for 9 hours and after this time, the vessels were 280 miles apart, it means that submarine travelled for 9 + 2 = 11 hours and the total distance covered by submarine and the aircraft is 280 miles.
Distance = speed × time
Distance covered by the submarine would be
11 × x = 11x
The aircraft carrier traveled at 25 mph. Distance covered by the aircraft would be
25 × 9 = 225
Therefore,
225 + 11x = 280
11x = 280 - 225 = 55
x = 55/11 = 5mph