Paul has two label-printing machines. Each machine can print 30 labels per minute. On day 1, only the first machine was used, an

Question

2 years ago

14

Paul has two label-printing machines. Each machine can print 30 labels per minute. On day 1, only the first machine was used, an

d 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?
120x + 30y
90 + 30x + 30y
30 + 90x + y
90x + 60y

Mathematics

1 answer:

Paraphin [41] · Answer 1 · 2022-03-25T03:14:39+03:00

Paraphin [41]2 years ago

4 0

90+30x+30y. This is because the first day, 90 labels were printed, then you will use 30 times x to find how many minutes. This is the same for 30 times y. Youre trying to figure out how many minutes each machine printed for.