I think the best way to solve this is to convert the ratios into fractions and then subtract from there :)
Answer:
{(3,1),(2,4),(6,8)}
Step-by-step explanation:
Since for inverse of (x,y), it's(y,x)
i.e. the forst term and second term of order pair switch their places
SOLUTION:
GCF = 4
20z - 8 = 4 ( 5z - 2 )
Hope this helps! :)
Have a lovely day! <3
1:45 ------> starting time
add an hour and a half
1:45-----> 2:45 -------> 3:15
another two hours
5:15 --------> ending time