Answer:
The total of ways the buildings can be painted are = 4
3
2
2
1 = 48 ways.
Step-by-step explanation:
i) color five buildings that are in a row.
ii) any two neighboring buildings must be different colors
iii) the first third and fifth buildings must be different colors.
iv) the number of ways to paint the fist building are 4.
v) the number of ways to paint the second building are 3.
vi) the number of ways to paint the third building are 2.
vii) the number of ways to paint the fourth building are 2.
viii) the number of ways to paint the last building are 1.
ix) therefore the total of ways the buildings can be painted are
= 4
3
2
2
1 = 48 ways.
When dividing fractions, flip the 2nd one around and then multiply across:
a) 3/11 / 3/11 = 3/11 x 11/3 = 33/33 = 1
b) 9/10 / 3/5 = 9/10 x 5/3 = 45/30 = 1 15/30 = 1 1/2
Answer:
6 aduts and 5 kids
Step-by-step explanation:
$20 for the kids in total and $54 for the adults
Answer:
7 and 8
Step-by-step explanation:
7 X 7= 49 8 X 8= 64 and you can't get closer unless you make it a decimal