Solving Proportions

Solving Proportions

Assessment

Flashcard

Mathematics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. For example, if a/b = c/d, then a, b, c, and d are in proportion.

2.

FLASHCARD QUESTION

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms. For example, for the proportion a/b = c/d, you can solve for a by using the equation a * d = b * c.

3.

FLASHCARD QUESTION

Front

What is the cross-multiplication method?

Back

The cross-multiplication method involves multiplying the numerator of one fraction by the denominator of the other fraction. This is used to solve proportions.

4.

FLASHCARD QUESTION

Front

If 3/4 = x/20, what is x?

Back

To find x, cross-multiply: 3 * 20 = 4 * x. Thus, x = 15.

5.

FLASHCARD QUESTION

Front

What is the definition of a ratio?

Back

A ratio is a comparison of two quantities by division. It can be expressed as a fraction, decimal, or percentage.

6.

FLASHCARD QUESTION

Front

How can you express a ratio in simplest form?

Back

To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).

7.

FLASHCARD QUESTION

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

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