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Reptile [31]
3 years ago
12

A math teacher graded 45 problems in 3/5 of an hour. At that rate, how many problems can she grade in one hour

Mathematics
2 answers:
Shalnov [3]3 years ago
8 0

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

dolphi86 [110]3 years ago
6 0

Answer:

75

Step-by-step explanation:

45*1/3=15

15*5=75

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