Can someone please help?

Mathematics

1 answer:

almond37 [142]3 years ago

3 0

60 ≥ 35 + 5t

-35 -35

25 ≥ 5t

5 5

t≤5

his mistake was that he used ≤ for at least instead of using ≥. so at end, when I solved, I saw that Sven should spend 5 minutes or less on each scale.

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