Understanding Proportions in Mathematics

What is a proportion in mathematics?

• A way to add two numbers together.

• An equation that shows two ratios are equal.

• A method for subtracting quantities.

• A single fraction representing a part of a whole.

When setting up a proportion for a word problem involving quantity and cost, how should the ratio be structured to maintain consistency?

• Quantity in the numerator, cost in the denominator.

• Cost in the numerator, quantity in the denominator.

• Quantity and cost added together.

• Quantity multiplied by cost.

A babysitter bought 6 cans of juice for $4.50. If you set up a ratio of juice to cost, what would the first ratio look like?

• 4.50 / 6

• 6 / 4.50

• 6 + 4.50

• 4.50 - 6

A babysitter bought 6 cans of juice for $4.50. If each can costs the same, which proportion correctly represents finding 'c', the cost in dollars, of 4 cans of juice?

• 6 / 4.50 = 4 / c

• 4.50 / 6 = c / 4

• 6 / c = 4.50 / 4

• 6 + 4 = 4.50 + c