Write the following numbers in order of size
2 answers:
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Let x be the number of rows.
If the number of rows is 7 less than the number of seats in each row, then the number of seats in a row is x+7. The total number of seats is
x·(x+7).
You know that a theater can seat 120 people, then
x·(x+7)=120.
Solve it:
The number of rows must be positive, then x=8.
Answer: there are 8 rows with 15 seats at each.
Answer:
1. Hypothesis: The ball is red
Conclusion: It will bounce higher
Converse: If the ball bounces higher, then it is red
2. Hypothesis: A plane contains two lines
Conclusion: They are coplanar
Inverse: If two lines are in a planes, then they are coplanar
3. Hypothesis: The light does not come on
Conclusion: The circuit is broken
Inverse: If the circuit is broken, then the light does not come on
4. Hypothesis: It is cold outside
Conclusion: You must wear your jacket
Inverse: If you must wear your jacket, then it is cold outside
