Questions by PrimosK

Questions by PrimosK

The current of a river is 3 miles per hour. A boat travels to a point 8 miles upstream and back in 2 hours. What is the speed of the boat in still water?

asked Jun 2, 2023

1 answer

23 votes

303k views

Write a matrix equation to model this system: 2x + 4y = 22 -3x + 2 y = 7

asked May 16, 2023

1 answer

7 votes

383k views

When exercising it is important to inhale during the less strenuous part and ________during the most strenuous part of the exercise.

asked Feb 23, 2023

1 answer

26 votes

482k views

If you use a lever to lift a boulder 0.25m, while applying 350 N on the lever which moves 1.5 m down on your side. What is the weight of the boulder? (F1d1 = F2d2) 87.5 N 131 N 525 N 2100 N

asked Aug 19, 2022

1 answer

3 votes

354k views

How long does it take long a light from the sun to reach the earth if it travels a distance of 1.5 × 10^11m? (velocity of light = 3 × 10^8 m/s)

asked Jul 25, 2022

1 answer

10 votes

530k views

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