5( - 2) ............................................
1 answer:
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Answer:
Time spent rowing down stream
Speed of boat in still water
Step-by-step explanation:
Let speed of boat in still water be
Speed of current
Speed of boat down stream =
Distance rowed down stream = 2400 m
Time spent rowing down stream = =
Speed of boat up stream =
Distance rowed up stream =
Time spent rowing up stream =
We know that,
So,
Cross multiplying
Dividing both sides by
Adding 60 to both sides.
Subtracting both sides by
Dividing both sides by 5.
∴
Speed of boat in still water
Time spent rowing down stream =
Answer:
The area of the outdoor carpet = 60 - 6 - 6 = 48 ft²
Step-by-step explanation:
The picture below is what you are referring to .
The whole area of the shape forms a rectangle. A triangle and a rectangle has been cut off from the whole carpet rectangle. The square ft or area of the carpet is the subtraction of the area of the rectangle and triangle cut off from the whole area of the rectangle .
Area of the rectangle = Lb
where
L = 12 ft
b = 5 ft
area = 12 × 5 = 60 ft²
The cut off triangle area
area = 1/2 × base × height
area = 1/2 × 4 × 3
area = 12/2 = 6 ft²
The cut off rectangle area
area = Lb
area = 3 × 2
area = 6 ft²
The area of the outdoor carpet = 60 - 6 - 6 = 48 ft²
