Question

sydney bought 18 bananas for $9. fill out a table of equivalent ratios and plot the points on the coordinate axes provided.
bananas | dollars
2 |
| 4
18 | 9
(coordinate axes with y-axis labeled number of dollars from 1 to 20)

Explanation:

Step1: Find the unit rate

The ratio of bananas to dollars is \( \frac{18}{9}=2 \) bananas per dollar. So the cost per banana is \( \frac{9}{18} = 0.5 \) dollars per banana.

Step2: Calculate for 2 bananas

Using the cost per banana (\( 0.5 \) dollars per banana), for 2 bananas, the cost is \( 2\times0.5 = 1 \) dollar.

Step3: Calculate for 4 dollars

Using the unit rate of 2 bananas per dollar, for 4 dollars, the number of bananas is \( 4\times2 = 8 \) bananas.

Answer:

For the first blank (2 bananas): 1 dollar; For the second blank (4 dollars): 8 bananas