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zaharov [31]
3 years ago
12

Brooke has set up 70 chairs in equal rows for the class talent show. But,there is not room for more than 20 rows. What are the p

ossible number of rooms that Brooke could set up?
Mathematics ​
Mathematics
1 answer:
Mama L [17]3 years ago
8 0

Answer:  If the rows must be even, she can set

14 rows of 5 chairs

10 rows of 7 chairs

7 rows of 10 chairs  or

5 rows of 14 chairs

Step-by-step explanation:

Take the prime factors of 70: 2, 5 and 7  Multiply  them in different ways to get the combinations where no product is greater than 20. (7 ×5 is the one combination of factors that won't work)

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