Flashcard Review for 4.1.6

Front

What is the formula for a proportional relationship?

Back

y = kx, where k is the constant of proportionality.

Front

Which of the following ratios is equivalent to 4:7?

Back

8:14 is equivalent to 4:7.

Front

Back

Front

What is the ratio of pears to ALL fruit in a bowl with 4 apples, 2 bananas, and 5 pears?

Back

The ratio of pears to all fruit is 5:11.

Front

Solve for x: 2x + 5 = 25

Back

x = 10.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.

Front

How do you find an equivalent ratio?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

Front

What is the constant of proportionality?

Back

The constant of proportionality (k) is the constant factor that relates two proportional quantities.

Front

If the ratio of boys to girls in a class is 3:4, how many girls are there if there are 12 boys?

Back

There are 16 girls.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first term is the numerator and the second term is the denominator.