Cross-multiplication is helpful in: a. quadratic equations c. linear equations b. solving proportions d. word problems please select the best answer from the choices provided a b c d

Solving proportions is simply a matter of stating the ratios as fractions, setting the two fractions equal to each other, cross-multiplying and solving the resulting equation.

What are the 2 methods for solving proportions?

Method I: Draw a double-sided number line, label the parts, set up a proportion and solve.

Method II: Using any method, calculate unit rate and then calculate how many pounds you can get for $30. Method III: Graph a point to represent the original ratio.

What is the rule for solving proportions?

The product of the means is equal to the product of the extremes.

Learn more about solving proportions here: https://brainly.com/question/14752332

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I understand the the question you are looking for is :

Cross-multiplication is helpful in:

a. quadratic equations

b. solving proportions

c. linear equations

d. word problems

please select the best answer from the choices provided a b c d