Standard practice
Comparisons need a common amount of one quantity.
| cups of juice | students |
|---|---|
| 2 | 6 |
| 6 | ? |
Jonah uses 2 cups of juice for every 6 students at the snack table. The same relationship has to hold for a larger amount.
To compare mixtures, write each as a ratio and look for a common number of one quantity, or compare cross products. The stronger mix has more of the first quantity for the same amount of the second. A larger total does not tell you which mix is stronger.
Problem 1 of 9. Activate, study a model, try guided items, work independently, apply, and reflect.