You need to use a common denominator. The least common denominator of 11 and 22 is 22.
3/22 + -1/11 = 3/22 + -2/22 = 3/22 - 2/22 = 1/22
The method of finding 2\3 of a number is by multiplying it by the 2 and dividing it by the 3! For example:
66x2=132
132÷3=44
So 2\3 of 66 = 44
Answer:
the perimeter is 48 and the apothem is 72
Step-by-step explanation:
its all just a bunch of multiplication. You multiply 6 (because there is six sides to your perimeter) by 8 and then you have 48. for the apothem. the apothem is a sliver of you perimeter
Firstly setup an equation to find the perimeter:
3x + 4x + 5x = 54, this is because perimeter is equal to sum of all side lengths
Then combine like terms:
12x = 54
Now use the division property of equality by dividing both sides by 12:
x = 4.5
So then, you will substitute the value of x for each value of the side lengths:
3(4.5) = 13.5 for AB, 4(4.5) = 18 for BC, and 5(4.5) = 22.5 for AC.
Hope this helps and let me know if you have any more questions!
