Answer:
A
Step-by-step explanation:
go by the equation: a n= a n 1 + (n-1)
so fill that in & you get a n = 112+50(n-1)
Find the area of all the sides and then divide each area by two. add them all up to get your answer.
Answer:
it takes longer for the boat to get back because it's moving against the current. to see how fast the boat is moving, you divide the amount of miles traveled, by how long it took.
240/20 = 12
in still water the boat travels it's 12 miles per hour
240/ 60 = 4
against the current, the boat travels 4 miles per hour
if you need to find the speed of the current, you need to find the resistance that's going against the boat making it slow down. you do that by doing 12 - 4 = 8 miles per hour is the speed of the current.
Step-by-step explanation:
I hope this helps :)
Answer:55
Step-by-step explanation:
You can write the equation as 220 miles over 4 hours = x over 1 hour. X represents the average speed in miles per hour. You need to cross multiply 220 and 1 to 4 and x. You get 220=4x. You just simply divide 4 on each side of the equation and get x=55, so the average speed in mph is 55.
The answer is 16 because 5(2) is 10 plus 3(2) which is 6 so 10+6 is 16
