calebaidanmcdowell calebaidanmcdowell

20-01-2021
Mathematics

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Every day Jin reads for 0.75 hours in the morning and 1.25 hours in the evening. He uses the expression 0.75d+1.25d to keep track of the number of hours he has read for any number of days, d. If Jin reads for 20 days, how many hours has he read?

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jacksoncc6 jacksoncc6

21-01-2021

Answer: 40 hours.

Step-by-step explanation: You can combine the like terms 0.75d and 1.25d to make 2d. 2 hours times 20 days is 40 hours.

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