3 years ago

Emma is building wall around

Mathematics

2 answers:

inessss [21]3 years ago

8 0

It will take 60 minutes, 1 hour

liq [111]3 years ago

8 0

Write and solve an equation of ratios:

75% 45 min
-------- = -----------
100% x

75x = 4500, and x = 60 (minutes)

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