Let, the speed of boat = x
Speed of current = y
So, x + y = 280/7
x + y = 40 ---- first equation
x - y = 280/14
x - y = 20
x = 20 + y
Substitute this value of x in first equation,
20 + y + y = 40
2y = 40 - 20
y = 20/2
y = 10
Substitute this in first equation,
x + 10 = 40
x = 30
In short, Speed of Boat = 30 mph, & speed of current = 10 mph
Hope this helps!
Answer:
For example if the three points are A, B and C in your diagram then there are infinitely many planes that contain the points. The final point is that if the three points do not lie on a line then there is exactly one plane that contains the points.
Step-by-step explanation:
Answer:
2.427%, 2.491%, 2.308%
Step-by-step explanation:
I just calculated the numbers after the decimal........ I think...
The unknown scale factor above is calculated by dividing the true value of the length of the banner by the length in the photograph. If we take the first dimension that is 8 inches only in photograph but 12 feet in the banner.
scale factor = (12 ft)(12 inches/ 1 ft) ÷ 8 inches
scale factor = 18
Therefore, the scale factor is 18:1. The answer to this item is letter D.
Answer:
A square
Step-by-step explanation:
Definition of a rhoumbus: Shape that 4 sides that are all equal
Definition of a rectangle: 4 Right Angles
Definition of a square: All sides and angles are equal.
So, the square has 4 right angles, and has 4 equal sides
