A model airplane is made on a scale of 1:128.

A)What is the scale factor of the model?

B)If the airplane has a wingspan of 30 cm, what is the wingspan of the actual airplane

Need help on this.

A)

1 / 128

B )

30 * 128 = 3840 cm = 38.4 m

Remark:

1 m = 100 cm

3840 cm / 100 cm = 38.4 m

I need it in inches

A) Well, if the model airplane is made on a scale of 1:128, the scale factor would be 1/128. So for every 1 unit on the model, it would be equivalent to 128 units on the actual airplane. Don't worry, they didn't skimp on the tiny screws for the model!

B) So if the model airplane's wingspan is 30 cm, we just need to multiply that by the scale factor of 128. And I hope you're ready for some mathematical magic because 30 multiplied by 128 is... wait for it... 3,840 cm! That's one giant wingspan! Now, just make sure it doesn't fly away with all that span.

A) The scale factor is a ratio that compares the size of the model to the size of the actual object. In this case, the scale is given as 1:128. This means that for every 1 unit on the model, it represents 128 units on the actual airplane. Therefore, the scale factor is 1/128.

B) To find the wingspan of the actual airplane, you can use the scale factor. If the wingspan of the model is 30 cm, you can multiply it by the scale factor to find the wingspan of the actual airplane.

Wingspan of actual airplane = Wingspan of model x Scale factor

Wingspan of actual airplane = 30 cm x 1/128

Wingspan of actual airplane = 0.234 cm

Therefore, the wingspan of the actual airplane is 0.234 cm.

To find the scale factor of the model airplane, you need to understand that the scale ratio is given as 1:128. The first number represents the model's size, while the second number represents the actual size.

To calculate the scale factor, divide the actual size by the model size. In this case, since the model size is represented by 1 and the actual size is represented by 128, the scale factor is 128/1 = 128.

Now, let's move on to determine the wingspan of the actual airplane based on the given wingspan of the model airplane.

Given that the model airplane's wingspan is 30 cm, and knowing the scale factor is 128, you can use the scale factor to find the actual wingspan. Multiply the model's wingspan by the scale factor.

Actual wingspan = Model wingspan * Scale factor
Actual wingspan = 30 cm * 128
Actual wingspan = 3840 cm

Therefore, the wingspan of the actual airplane is 3840 cm.