Answer:
he was 9 ft in and swam a total of 87 ft total.
Answer:
17 hours
Step-by-step explanation:
Rachel has already written 10pages, and she expects to write 1page for every additional hour spent writing. How many hours will Rachel have to spend writing this week in order to have written a total of 27pages?
The illustration can be modelled using the equation
y = 10 + 1(x)
y = 10 + x
Where,
y = total number of pages
x = number of hours
10 = pages already written
If y = 27 pages, find x
y = 10 + x
27 = 10 + x
27 - 10 = x
17 = x
x = 17 hours
Rachel have to spend 17 hours writing this week in order to have written a total of 27pages
Answer:
Ground speed is 61.67 km /h.
Step-by-step explanation:
Ground speed of aircraft is obtained b the sum of aircraft speed minus the current speed and direction.
For this the given formula is
81-27 cos (255 - 81 )
53.704 km/h
27 sin ( 225 - 81 ) = 2.822 km /h
so ground speed =
= 61.67 km /h
check the picture below.
on the first quadrant, namely 0° < x < 90°, the sine of one acute angle, equals the cosine of the other acute angle, as you see in the example in the picture.
therefore
Step by step equation
Square root