Understanding Ratios and Rates

This video tutorial covers solving equivalent ratio problems through various examples, including calculating costs of vinegar and pasta, analyzing reading and typing speeds, comparing train speeds, and finding the surface area of a polyhedron. Each section provides step-by-step solutions to practical problems using ratio concepts.

What is the main focus of Unit 2 Lesson 14?

• Studying geometry

• Understanding equivalent ratios

• Learning about fractions

• Solving algebraic equations

If 2 gallons of vinegar cost $3, how much does 1 gallon cost?

• $3.00

• $2.00

• $1.50

• $1.00

How much would 15 gallons of vinegar cost if 2 gallons cost $3?

• $45.00

• $30.00

• $22.50

• $15.00

Which of the following ratios correctly represents the price of vinegar?

• 2 gallons to $2

• 30 gallons to $45

• 1 gallon to $1.50

• 4 gallons to $3

How much will the caterer pay for 21 pounds of pasta if 8 pounds cost $12?

• $31.50

• $28.00

• $25.00

• $40.00

What is the equivalent ratio for 1 pound of pasta?

• 1 pound for $2.00

• 1 pound for $2.50

• 1 pound for $1.00

• 1 pound for $1.50

How long does it take Lynn to read one page?

• 1.75 minutes

• 1.5 minutes

• 2 minutes

• 2.25 minutes

Will Lynn finish reading the book in under an hour?

• Yes, she will finish in 50 minutes

• No, she needs more than an hour

• No, she needs exactly an hour

• Yes, she will finish in 45 minutes

How many words can Diego type in one minute?

• 30 words

• 35 words

• 40 words

• 45 words

How long will it take Diego to type 385 words?

• 12 minutes

• 13 minutes

• 11 minutes

• 10 minutes