Answer:
Step-by-step explanation:
1:4:7
1+4+7=12
120+12+10
1 3/5 = 8/5
.2=2/100
make an equality:
x/(8/5)=2/100
it kinds looks weird on here but write it out on paper
then cross multiply:
100x=(2)(8/5)
100x=16/5
now divide each side by 100:
x=4/125
same for the second one:
make an equality:
x/2=2/100
cross multiply:
100x=(2)(2)
100x=4
x=1/25
Look up the law of sines, I suggest Khan Academy. It is better if you know how to do it, it is very useful.
They are the same because if you add a zero it doesnt change it
In order from least to greatest is 8.7, 8.83, 26/3, 79