Answer:
The fraction of tiles that will be the color of "sand" is 23/60
Step-by-step explanation:
we know that
The sum of the fractions of the tiles must be equal to 1
Let
x ----> the fraction of tiles that will be the color of "sand"
we have that

solve for x
Find the Least Common Multiple of denominators

Multiply both sides by 60

simplify


therefore
The fraction of tiles that will be the color of "sand" is 23/60
I thought that was all one equation lol this is very simple just plug in -3 for x
which is -3^2-3 which is -12
Answer:
3.36:45=0,8
4.40:32=1,25
536:45=0,8
6.48:50=0,96
Hope it helps and likes it