Question

Cora and Cecilia each use chalk to make their own number patterns on the

Answer 1

Answer:

5th box  has 45 for  Cecilia and 15 for Cora

8th box  has 72 for  Cecilia and 24 for Cora

Cecilia's boxes numbers are 3 times of Cora's boxes numbers.

Step-by-step explanation:

This can be completed as follows .

                              0   1   2     3     4      5      6    7       8         9       10

Cora's boxes        0   3   6     9     12   15      18    21     24      27     30

Cecilia's boxes    0   9   18    27   36  45     54   63    72      81     90

The 5th box  has 45 for  Cecilia and 15 for Cora which means  Cecilia's  number is 3 times bigger than Cora's number in the 5th box.

The 8th box  has 72 for  Cecilia and 24 for Cora which means  Cecilia's  number is 3 times bigger than Cora's number in the 8th box.

As we see that the difference in numbers is of three times from the beginning to the end. Therefore we conclude that  Cecilia's boxes numbers are 3 times of Cora's boxes numbers.