nickthequick
29.02.2020 •
Mathematics
Small tug boats pull cruise ships up and down rivers to prevent them from grounding. Cruise ships anchor 18 km away from the river port. A tug boat can travel 12 km downstream in the same time it takes it to travel 8 km upstream. If the speed of the current is 6 km/h, calculate the travel time it takes for the tug boats to go upstream from the cruise ship to the river port and then downstream back to the cruise ship.
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Ответ:
area=width * length
We know that the area of the computer is 384 square inches.
We also know that the length of the monitor is six times the quantity of five less than half its width.So, we can write: length=6*(width/2-5)
So,
384=w+3w-30
414=4w
w=414/4=103.5 inches