15 - 9 = 6 6÷3=2 X=2
You do the inverse operation
Answer:
There is no common difference
Step-by-step explanation:
4 9 13 18
diff 5 4 5
Because the difference between 9 and 13 is 4
and the difference in the other terms is 5
there is no common differeence
Answer:
there a 42 days in 6 weeks
Step-by-step explanation:
multiply 6 x 7= 42
Answer:
The total percent decrease is 
Step-by-step explanation:
- We are given with a word problem
- We are asked to find the total percentage decrease
- We can do this in two steps
Step 1: Finding the two percentage decrease
Step 2: Finding their difference
Step 1 of 2
Let the decrease by a% be 100-a
Then b% decrease is

Step 2 of 2
The percentage difference between the two percentages is,

Since 100 is the total percent
is the percentage decrease.