Answer: 5:6, 5/6, etc.
Step-by-step explanation:
The greatest common factor of 75 and 90 is 15. Thus, simply divide both terms by 15 to get 5 and 6. Then simply write this pair in every ratio form.
Answer:
Step-by-step explanation:
If two lines are parallel then they will have the same slope. So all you need to do is find the slope of the line that joins the two given points. You can use the slope formula
. You can also graph the two points and use rise over run. 
Answer:
Nina practiced the viola for 11.25 hours last week.
Step-by-step explanation:
Juan practiced the violin for 9 hours last week. For each 3 hours that he practices the violin, he practices 2.5 hours of cello. So
3h violin - 2.5h cello
9h violin - xh cello


He practiced 7.5 hours of cello, the same as Nina.
For every 3 hours Nina spends practicing the viola she practices the cello for 2 hours. So:
3h viola - 2h cello
xh viola - 7.5h cello



Nina practiced the viola for 11.25 hours last week.
Answer:
i got 32 weeks??
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
If you divide one into the other and the answer is 1 then they are of the same ratio.