Proportion Word Problems (for a grade)

Front

What is a proportion?

Back

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

Front

How do you set up a proportion to solve a word problem?

Back

Identify the two quantities that are being compared, set them as a fraction, and cross-multiply to solve.

Front

If 80 words can be typed in 1 minute, how many words can be typed in 30 minutes?

Back

2400 words (80 words/minute * 30 minutes = 2400 words).

Front

Sasha jarred 25 liters of jam in 5 days. How much jam does she jar in 7 days?

Back

35 liters (25 liters/5 days = 5 liters/day; 5 liters/day * 7 days = 35 liters).

Front

If Will spent $3.75 for 3 pounds of granola, how much can he buy for $10?

Back

8 pounds (3 pounds/$3.75 = 0.8 pounds/$1; $10 * 0.8 pounds = 8 pounds).

Front

Farah learned 15 recipes in 3 weeks. How many recipes will she learn in 4 weeks?

Back

20 recipes (15 recipes/3 weeks = 5 recipes/week; 5 recipes/week * 4 weeks = 20 recipes).

Front

What is the formula for finding a unit rate?

Back

Divide the quantity by the number of units (e.g., miles per hour, cost per item).

Front

How do you find the total cost if you know the cost per item?

Back

Multiply the cost per item by the number of items.

Front

If a team-building event costs $12 for 4 attendees, what is the cost per attendee?

Back

$3 per attendee ($12/4 attendees = $3/attendee).

Front

How do you determine how many attendees can fit within a budget?

Back

Divide the total budget by the cost per attendee.