If the original painting has dimensions of 5 by 3.5, and has a scale factor of 1, then if we are trying to find the dimensions of the same thing but with a scale factor of 3, then we need to multiply the dimensions by 3.
The average speed = (speed 1 + speed 2)/2 the average speed = (80/10 + 100/20)/2 the average speed = (8 + 5)/2 the average speed = 13/2 the average speed = 6.5 km/minute
If he swan the length and the width of the pool it would be 21 x28 = 588 sq ft. by swimming the length and the diagonal of the pool (25 ft) found that by using the pythagorean therom so now you are multiplying 21 x 25 = 525