Unit 3, Lesson 6
Equivalent Ratios Have the Same Unit Rates
Grade 6
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Two binders cost $14, and 5 binders cost $35.
Complete the table to show the cost for 4 binders and 10 binders at that rate. Next, find the cost for a single binder in each case, and record those values in the third column.
| number of binders | cost (dollars) | unit price (dollars per binder) |
|---|---|---|
| 2 | 14 | |
| 4 | ||
| 5 | 35 | |
| 10 |
| number of notebooks | cost (dollars) | unit price (dollars per notebook) |
|---|---|---|
| 20 | 3 | |
| 50 | 3 | |
| 21 | 3 | |
| 84 | 3 | |
| 3 |
Clare makes bracelets at a constant speed.
Complete the table. Be prepared to explain your reasoning.
| time spent (hours) | number of bracelets | speed (bracelets per hour) |
|---|---|---|
| 2 | 6 | |
| 5 | 6 | |
| 42 | 6 | |
| 66 | 6 | |
| 90 | 6 | |
| 6 |
Noah and Lin each bought some bracelets that Clare made.
Noah bought 5 bracelets for
| number of bracelets | cost (dollars) | unit price (dollars per bracelet) | |
|---|---|---|---|
| Noah | 5 | ||
| Lin |
Lin bought twice as many bracelets as Noah bought and paid twice the amount Noah paid. Complete the table to show her purchase.
Did Lin pay twice the unit price that Noah paid?
Pause here for a class discussion before moving on.
| number of bracelets | cost (dollars) | unit price (dollars per bracelet) | |
|---|---|---|---|
| Mai | |||
| Diego |
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