A) 70 pools in total
B) 5:2
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Answer:
n=0.4
Step-by-step explanation:
10:4=5:2
to make 5 as 1, we will divide both 5 and 2 by 5
<h3>

:

=1:n</h3><h3>therefore, n=

= 0.4</h3><h3 /><h3> </h3>
Answer:
The number of ways are there to paint the four buildings is 48.
Step-by-step explanation:
I) let the first building be any color. Therefore the first building can be painted with any of the 4 colors.
Therefore the first building can be colored in 4 ways.
ii) the second building can be colored in 3 ways since it cannot be colored the
same color as the first building.
iii) the third building can also be colored in 3 ways.
iv) the last building can be colored in 2 ways because it cannot be the same color as the first building or the color of the adjacent building.
Therefore the total number of ways the buildings can be colored = 4
3
3
2 = 48.