Solving Proportions

What is the cross-multiplication method?

• It involves adding the numerators of two ratios.

• It involves multiplying the numerator of one ratio by the denominator of the other ratio.

• It is a method used for finding the least common multiple.

• It involves dividing the denominator of one ratio by the numerator of the other ratio.

If 36 baseball cards cost $18, what is the cost per card?

• $0.25

• $0.50

• $0.75

• $1.00

If 3/5 = x/20, how do you find x?

• x = 8

• x = 10

• x = 12

• x = 15

If a recipe calls for 2 cups of flour for 4 servings, how much flour is needed for 10 servings?

• 3 cups of flour

• 4 cups of flour

• 5 cups of flour

• 6 cups of flour

If 2/3 = x/9, what is x?

• x = 4

• x = 5

• x = 6

• x = 7

What is a proportion?

• A proportion is an equation that states that two ratios are equal.

• A proportion is a type of fraction.

• A proportion is a method of solving equations.

• A proportion is a comparison of two different quantities.

How many baseball cards can Troy buy with $9 if each card costs $0.50?

• 10 baseball cards

• 15 baseball cards

• 18 baseball cards

• 20 baseball cards

What is the importance of solving proportions in real life?

• It helps in making comparisons, scaling recipes, and understanding ratios in various contexts.

• It is only useful in academic settings and has no real-life application.

• It complicates simple calculations and is not necessary for daily tasks.

• It is primarily used in advanced mathematics and not in everyday situations.

If 4/8 = x/16, what is x?

• 4

• 6

• 8

• 10

How do you solve a proportion?

• Cross-multiply the terms and then solve for the unknown variable.

• Add the two fractions together and simplify.

• Multiply both sides by the same number.

• Subtract the smaller number from the larger number.