Sienna planned a rectangular pool, as shown in the scale drawing below. A rectangle with length 11 inches and width 7 inches. Sienna used the scale drawing above to create a pool that is 14 ft wide mc005-2.jpg 22 ft long. She then decided to make a pool with a final length of 33 ft. Which expression finds the change in scale factor for the longer pool Sienna is building? StartFraction 11 inches over 27.5 feet EndFraction StartFraction 22 feet over 11 inches EndFraction StartFraction 22 feet over 27.5 feet EndFraction StartFraction 27.5 feet over 22 feet EndFraction

Scale drawing: a rectangle with length 4 feet and width 3.75 feet. Initial dimensions: a rectangle with length 24 feet and width 15 feet. New dimensions: a rectangle with length 20 feet and width 18.75 feet. Abdul planned a pool to be 24-feet long. To fit in his yard, however, the pool can only be 20-feet long. Abdul’s ratio and work is below. Where did he make an error? StartFraction 24 feet divided by 6 over 20 feet divided by 6 EndFraction = StartFraction 4 over 3 EndFraction Abdul’s work is correct. Abdul should have divided by 5, not 6. Abdul should have divided by 4, not 6. This problem has no change in the scale factor

he perimeter of a rectangular pool is 294m.If the length of the pool is 91m, what is its width?

Michel uses the scale drawing and the scale factor to enlarge a square that has a side length of 12 in. A square with side lengths of 12 inches. Scale factor: 3 inches = 2 meters. Which proportion could Michel use to solve the side length, x, of the enlarged square? StartFraction 3 inches over 2 meters EndFraction = StartFraction x meters over 12 inches EndFraction StartFraction x inches over 2 meters EndFraction = StartFraction 3 inches over 12 meters EndFraction StartFraction 3 inches over x meters EndFraction = StartFraction 2 meters over 12 inches EndFraction StartFraction 3 inches over 2 meters EndFraction = StartFraction 12 inches over x meters EndFraction

Original scale: 1 inch = 8 feet. A parallelogram with a side length of 24 feet. A larger parallelogram with a side length of 72 feet. Noah planned a parallelogram-shaped sidewalk to lead from the street to the front door of his house. He realized the walkway was too short and he needs to change the length to 72 feet. He wrote a ratio to find the change in the scale factor. 24 ft 72 ft = The change in the scale factor is . The change of scale means that 1 inch represented feet, but now 1 inch represents feet.

Veronica was asked to scale a square of quilt fabric with a side length of 50 cm using a scale factor of 30%. What is the new side length of the square?