Answer:
Step-by-step explanation:
Given
-- folded twice
Required
The area of the new rectangle
When the length was folder, the new length is:
When the width was folder, the new width is:
So, the new area is:
Look at the stem-and-leaf plot. What is the range of the numbers?
2 answers:
You might be interested in
14.94 cm ( to 2 dec. places )
We require the sum totals of the 2 groups before calculating the mean of all 14
using mean =
Children's sum
12.6 = ( cross-multiply )
sum = 6 × 12.6 = 75.6
Adult's sum
16.7 = ( cross- multiply )
sum = 8 × 16.7 = 133.6
Total sum of all 14 = 75.6 + 133.6 = 209.2
mean = = 14.94 cm