### Home > ACC7 > Chapter cc33 > Lesson cc33.2.5 > Problem3-117

3-117.

This problem is a checkpoint for unit rates and proportions. It will be referred to as Checkpoint 3. Homework Help ✎

In parts (a) through (c), use the given information to find the unit rate. In parts (d) through (f), write and solve a proportion based on the given information.

1. If $2\frac { 1 } { 4 }$ pounds of bananas cost $\1.89$, what is the cost per pound?

2. What is the weight per cm?

 weight (g) 9 12 18 30 length (cm) 15 20 30 50
3. Use the graph at right to find the refill cost per bottle.

4. If $200$ vitamins cost $\4.75$, what should $500$ vitamins cost?

5. If a basketball player made $72$ out of $85$ free-throw attempts, how many could she expect to make in $200$ attempts?

6. A cookie recipe uses $\frac { 1 } { 2 }$ teaspoon of vanilla with $\frac { 3 } { 4 }$ cup of flour. How much vanilla should be used with five cups of flour?