To do this question you can use proportions.
3/60 is simplified to 1/20.
This shows that if you study 1 hour you get a 20. So to find the answer you multiply each side by 4.5, this means that if you study 4.5 hours you get a 90.
Answer:
h=12
Step-by-step explanation:
by cross multiplying we get 1h=12 or h=12 so h=12
This is the most easier question anyone has asked yet. kill me
Answer: where is the question (and if you think I wrote this to get the points your wrong its because I cant comment ok) so now please show me the question for me and other people to answer.
Step-by-step explanation:
Answer:/?idk
Step-by-step explanation:
