Paul has two label-printing machines. Each machine can print 30 labels per minute. On day 1, only the first machine was used, and it printed 90 labels. On the following day, the first machine printed for x minutes and the second machine printed for y minutes. Which expression shows the total number of labels printed by both machines during these two days?

Question

Bucky

Mathematics

3 November, 20:43

Paul has two label-printing machines. Each machine can print 30 labels per minute. On day 1, only the first machine was used, and it printed 90 labels. On the following day, the first machine printed for x minutes and the second machine printed for y minutes. Which expression shows the total number of labels printed by both machines during these two days?

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Answers (1)

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Marilyn Berg · Answer 1

Amount of work per unit of time times how many units of time=amount of work done

work for each machine=30 times x or 30 times y

30x and 30y

first day, 90 lables

2nd day is 30x and 30y

so the total is added them up

90+30x+30y