Describe what makes a proportion. Give an example of a proportion.(2 points)

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Math Short Answer Rubric (2 points)
Points Awarded Criteria
2
The answer is correct. The student made no errors while solving.

The answer shows that the student used problem-solving skills and reasoning.

All work is shown or explained.

1
The answer is partially correct. The student made errors while solving.

The answer shows little problem-solving skills or reasoning.

Some work is shown or explained.

0 The question is not answered.

1 answer

A proportion is an equation that states that two ratios are equal. It can be represented in the form of a/b = c/d, where a, b, c, and d are numbers, and b and d are not zero. This means that the relationship between the first pair of numbers (a and b) is the same as the relationship between the second pair (c and d).

Example of a Proportion:

Consider the ratios 2/3 and 4/6. We can write this as:

2/3 = 4/6

To check if this is a proportion, we can cross-multiply:

2 * 6 = 3 * 4 12 = 12

Since both sides of the equation are equal, we confirm that 2/3 is equal to 4/6, meaning they form a proportion.

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