Mathematics, 18.12.2020 14:00 raynamg2718

The number of days, d, that it will take to build a house is given by d= 720 divided by n
where n is the number of workers used each day.
Ali's company will take 40 days to build the house.
Hayley's company will take 30 days to build the house.
Hayley's company will have to use more workers each day than Ali's company.
How many more?

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