Proportional or not

Front

What does it mean for two ratios to be proportional?

Back

Two ratios are proportional if they express the same relationship between numbers, meaning they can be simplified to the same fraction.

Front

How can you determine if two ratios are proportional?

Back

You can determine if two ratios are proportional by cross-multiplying and checking if the products are equal.

Front

Is 11/3 proportional to 33/9?

Back

Yes, because 11/3 = 33/9 when simplified.

Front

Is 5/4 proportional to 35/28?

Back

Yes, because 5/4 = 35/28 when simplified.

Front

Is 8/9 proportional to 16/18?

Back

Yes, because 8/9 = 16/18 when simplified.

Front

Is 5/6 proportional to 60/50?

Back

Yes, because 5/6 = 60/50 when simplified.

Front

Is 8/3 proportional to 32/12?

Back

Yes, because 8/3 = 32/12 when simplified.

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one ratio by the denominator of the other ratio and vice versa to check for equality.

Front

What is an example of a proportional relationship in real life?

Back

An example of a proportional relationship is the speed of a car, where distance traveled is proportional to time taken at a constant speed.

Front

What is a non-proportional relationship?

Back

A non-proportional relationship is when two quantities do not maintain a constant ratio or rate.