Here is one example of when you would use the friendly number strategy to subtract.
42 - 18
We will turn the 18 into a friendly number, which is going to be 20.
(42 + 2) - (18 + 3)
44 - 20
Now it is easier to subtract 44 - 20 than it is 42 -18. With 42 - 18 we would have to barrow whereas with 44 -20 we do not have to barrow and we can do it in our head easier and makes it faster.
It is 17/50 because 17 times 2 is 34 and 50 times 2 is 100. That 17/50 is the lowest it can go so that is your answer.
17/50 is ur answer
Answer:a
Step-by-step explanation:
150,165,180,198,204,216,230,255
Quartile 1: (165+180)÷2
=345÷2
=172.5
Quartile 3: (216+230)÷2
=446÷2
=223
Quartile range:223-172.5=50.5 or D. Hope it help!
Answer:
25×22/7 feet^2
Step-by-step explanation:
area of cirle =22/7×r^2