Question

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

Answer 1

Answer:

Claire correctly solved the proportion StartFraction x over 4 EndFraction = StartFraction 36 over 16 EndFraction for x by using cross products to get the equation 16 x = 144 and then dividing both sides by 16 to get x = 9. She showed that she can use cross products to solve the proportion because she gets the same answer if the solves it as shown. StartFraction x over 4 EndFraction = StartFraction 36 over 16 EndFraction. StartFraction x over 4 EndFraction times 4 = StartFraction 36 over 16 EndFraction times 4. x = StartFraction 144 over 16 EndFraction. X …

Step-by-step explanation:

Answer 2

Answer:

PLS give me brainliest likes and 5 stars

Step-by-step explanation:

Here

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.