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Nova Math - Problem Set C: Substitution (Plugging In)
| Question Name | Average time to answer (seconds) | Total correct answers | Total incorrect answers |
|---|---|---|---|
| The ten’s digit of a two-digit number is twice the unit’s digit. ... ... | 91 | 111 | 21 |
| If , then N = | 47 | 118 | 11 |
| The sum of the digits of a two-digit number is 12, and the ten’s ... ... | 70 | 119 | 10 |
| Suppose half the people on a bus exit at each stop and no additional passengers ... ... | 96 | 98 | 29 |
| If , then x could be | 134 | 105 | 20 |
| Which one of the following is a solution to the equation x4 − 2x2 ... ... | 47 | 127 | 2 |