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Jerome takes a math course and a science course for summer school. For every 5 hours Jerome spends studying math, he studies science for 4 hours. If Jerome spent a total of 45 hours studying last week, then how long did he study math?

Respuesta :

Answer:

25 hours

Step-by-step explanation:

Math : Science

5 : 4

5/(5+4) × 45

5/9 × 45

25