Question

Van found the change in a scale factor. His work is shown below. What error did Ivan make?

Answer 1

Answer:

Ivan wrote the ratio incorrectly. The ratio should be written as the old length to the new length, so it should be 35

10

, which reduces to 7

2

. When going from larger to smaller dimensions, the change in the scale factor is a ratio that looks like an improper fraction, with a larger number in the numerator and a smaller number in the denominator.

Step-by-step explanation: