PLEASE PLEASE HELP I WILL GIVBE BRAINLIEST

Mathematics

1 answer:

JulijaS [17]3 years ago

5 0

You need to find the ratio or both x and y.

If their all equal, then it is proportional.

If it’s not equal, it isn’t proportional.

You would need to divide the numbers.

Let’s say that the top number in a table is 9 and the bottom number is 90.

You would divide 90/9 and get 10. If you divide the rest, and their all 10, then it is proportional.

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The universally accepted film size for movies has a width of 35 millimeters. If you want to project a movie onto a square sheet

dlinn [17]

Answer:

<h2>The scale factor is 285.7143 ≅ 286.</h2>

Step-by-step explanation:

The square sheet has an area of 100 square meters.

Hence, the width of the sheet is $\sqrt{100} = 10$ meters.

The scale factor is needs to be in such a way, so that the film's wide will be match perfectly with the square sheet. Hence, 35x millimeters = 10 meters = 10000 millimeters .

$x = \frac{10000}{35} = 285.7143$ .