Unit 2, Lesson 19
Equivalent Ratios Have the Same Unit Rates
Accelerated 6
Practice
Problem 1
A car travels at 55 miles per hour for 2 hours. Complete the table.
| time (hours) | distance (miles) | miles per hour |
|---|---|---|
| 1 | 55 | 55 |
| \(\frac12\) | ||
| \(1\frac12\) | ||
| 110 |
Problem 2
The table shows the amounts of onions and tomatoes in different-sized batches of a salsa recipe.
Elena notices that if she takes the number in the tomatoes column and divides it by the corresponding number in the onions column, she always gets the same result.
What is the meaning of the number that Elena has calculated?
| onions (ounces) | tomatoes (ounces) |
|---|---|
| 2 | 16 |
| 4 | 32 |
| 6 | 48 |
Problem 3
A restaurant is offering two specials on horchata, a sweet cinnamon-infused rice milk: \$3 for a 12-oz cup, or \$5 for a 20-oz cup. Which horchata special is a better deal? Explain your reasoning.
Problem 4
Complete the table so that the cost per banana remains the same.
| number of bananas | cost in dollars | unit price (dollars per banana) |
|---|---|---|
| 4 | 0.50 | |
| 6 | 0.50 | |
| 7 | 0.50 | |
| 10 | 0.50 | |
| 10.00 | 0.50 | |
| 16.50 | 0.50 |
Problem 5
Two planes travel at a constant speed. Plane A travels 2,800 miles in 5 hours. Plane B travels 3,885 miles in 7 hours. Which plane is faster? Explain your reasoning.
Problem 6
A car can travel 35 miles per gallon of gas. It uses \(\frac{1}{35}\) of a gallon of gas to go 1 mile.
- How far can the car travel with 15 gallons? Show your reasoning.
- How much gas does the car use to go 100 miles? Show your reasoning.
Problem 7
There are approximately 22 pounds in 10 kilograms. For each question, explain or show your reasoning.
- How much does a 3-kilogram object weigh in pounds?
- A box of cereal weighs 600 grams. How much does it weigh in pounds?