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Sienna planned a trapezoid-shaped garden, as shown in the drawing below.

A trapezoid has top side length of 4 inches, bottom side length of 9 inches, and left side length of 6 inches.
She decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. Which expression finds the change in the scale factor?
StartFraction 4 inches over 24 feet EndFraction
StartFraction 32 feet over 4 inches EndFraction
StartFraction 24 feet over 32 feet EndFraction
StartFraction 32 feet over 24 feet EndFraction

User Reza Taba
by
6.9k points

1 Answer

2 votes

Answer:288 inches over 4 inches.

Step-by-step explanation:

To find the expression that represents the change in the scale factor when Sienna changes the length of the top side of the trapezoid-shaped garden from 32 ft to 24 ft, we need to calculate the ratio between the original length and the new length.

The original length of the top side is 4 inches, and the new length is 24 feet.

To compare the lengths, we need to convert them to the same unit. We can convert the new length from feet to inches, so we have:

Original length: 4 inches

New length: 24 feet = 24 * 12 = 288 inches

The scale factor is the ratio of the new length to the original length.

So, the expression that finds the change in the scale factor is:

StartFraction 288 inches over 4 inches EndFraction

Therefore, the correct answer is:

StartFraction 288 inches over 4 inches EndFraction (option b)

Step-by-step explanation:

To find the change in the scale factor, we need to compare the original length (4 inches) with the new length (24 feet or 288 inches). By dividing the new length by the original length, we get the ratio that represents the change in the scale factor. So, the expression that finds the change in the scale factor isTo find the expression that represents the change in the scale factor when Sienna changes the length of the top side of the trapezoid-shaped garden from 32 ft to 24 ft, we need to calculate the ratio between the original length and the new length.

The original length of the top side is 4 inches, and the new length is 24 feet.

To compare the lengths, we need to convert them to the same unit. We can convert the new length from feet to inches, so we have:

Original length: 4 inches

New length: 24 feet = 24 * 12 = 288 inches

The scale factor is the ratio of the new length to the original length.

So, the expression that finds the change in the scale factor is:

StartFraction 288 inches over 4 inches EndFraction

Therefore, the correct answer is:

StartFraction 288 inches over 4 inches EndFraction (option b)

Step-by-step explanation:

To find the change in the scale factor, we need to compare the original length (4 inches) with the new length (24 feet or 288 inches). By dividing the new length by the original length, we get the ratio that represents the change in the scale factor. So, the expression that finds the change in the scale factor is 288 inches over 4 inches.

User Hardik Vaghani
by
7.7k points