Ivan found the change in a scale factor. His work is shown below. What error did Ivan make? Old length = 35 feet New length = 10 feet StartFraction 10 divided by 5 over 35 divided by 5 EndFraction = StartFraction 2 over 7 EndFraction
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Answer:
Scale factor is:
factor = (new length) / (old length) Ivan correctly inserted numbers and correctly divided these two numbers by 5.
There is no error
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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:
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