A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in one hour
2 answers:
Answer: 75 problems
Step-by-step explanation:
3/5 of an hour is the same as 3/5 x one hour.
one hour is the same as 60 minutes , this means that 3/5 of an hour is the same as :
3/5 x 60 = 36 minutes
This means that , the teacher graded 45 problems in 36 minutes. then in 1 minutes ;
The teacher will grade 45/36 problems
so in 60 minutes ;
the teacher will grade 45/36 x 60 = 75 problems
Answer:
75
Step-by-step explanation:
45*1/3=15
15*5=75
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