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

Question

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] · Answer 1 · 2022-03-07T03:04:39+03:00

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)