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Nova Math - Problem Set B: 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. ... ... | |||
If , then N = | |||
Suppose half the people on a bus exit at each stop and no additional passengers ... ... | |||
The sum of the digits of a two-digit number is 12, and the ten’s ... ... | |||
If , then x could be | |||
Which one of the following is a solution to the equation x4 − 2x2 ... ... |