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Answer:
8.
Step-by-step explanation:
5, 10, 12, 4, 6, 11, 13, 5
Arrange in ascending order:
4, 5, 5, 6, 10, 11, 12, 13.
The median is the mean of the 2 middle numbers:
= (6 + 10) / 2
= 8.
Answer:
They use the same triangle but in different sizes to make the big triangle.
Step-by-step explanation:
So, let's say that I have 3 bills: a 50 dollar bill, a 100 dollar bill and 1 dollar bill.
I need to buy 9 pens for my friends, and each of the pens costs 4.34 dollars.
I want to know if I can just take the 50 dollar bill, since I'm not too comfortable to carry the 100 dollar bill the whole day.
A quick estiate tells me that 10 times 5 is 50, and since both numbers are less, then in fact, 50 dollar bill will be enough!
