Answer:
72 square feet
Step-by-step explanation:
In the attached file
Answer:
Step-by-step explanation:
a) False. There are three factor pairs for 36:
1×36
2×18
3×12
4×9
6×6
b) True.
18 = 2×3²
Odd divisors of 18: 1, 3, 9
1+3+9 = 13
c) False
100 = 2×5²
25 = 5²
Greatest common divisor = 25
<span>To write 215% as a decimal you can approach the problem two ways. You can divide 215 by 100.
215/100 = 2.15
You can also move the decimal two places to the left 215.0 = 2.15
To write 2.15 as a fraction you will place 215 over 100. {215/100}. You will then want to write this fraction in it’s simplest form. The greatest common denominator is 5 so you will then divide the numerator and denominator by 5.
215/5 = 43
100/5 = 20
215/100 = 43/20
To write this fraction as a mixed fraction you would divide 43 by 20.
43 ÷ 20 = 2 with a remainder of 3
This is written as: 2 3/20</span>
Distribute 2 to 3t and 4, and 6 to t and 2
2(3t + 4) = 6t + 8
6(t + 2) = 6t + 12
Combine like terms:
6t + 8 + 6t + 12 = 12t + 20
12t + 20 is your answer
hope this helps
Let
be the random variable for the time a given person from the population spends sleeping. With
we have

where
.


Rounded to the nearest whole number, that comes out to about 31%.