A river flows due south at 100 ft/min. A motorboat that travels 450 ft./min. in still water is headed due east across the river.
Find the resultant speed of the boat.
round to the nearest ft./min.
round to the nearest ft./min.
2 answers:
Answer:
The answer is : 461 ft./min
Step-by-step explanation:
We can imagine the speed of the river (due south) and the speed of the boat(due east) as two vectors working at a single point with an angle of 90 degree . This allows us to use the parallelogram law to determine the resultant speed Of the boat.
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The equation 2v-41=0 can be used to find the number of visits that would make two memberships cost the same amount.
Step-by-step explanation:
Given,
Per month charges of type 1 = $86
Per visit charge = $3
Let,
v be the number of visits.
T(v) = 3v+86
Per month charges of type 2 = $45
Per visit charge = $5
P(v) = 5v+45
For same amount to be charged;
T(v) = P(v)
The equation 2v-41=0 can be used to find the number of visits that would make two memberships cost the same amount.