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14.06.2021 •
Mathematics
It takes you 45 minutes to wash a car
alone. Your friend can wash a car in 30
minutes. How long will it take you and
your friend to wash a car together? You
can use the work principle to find out!
Solved
Show answers
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Ответ:
37.5 minutes
Step-by-step explanation:
45+30=75
=75 =37.5
2
This might help you
Ответ:
So someone else had gave the correct answer, but I thought it wasn’t clear enough so I hope this helps.
Step-by-step explanation:
45 + 30 = 75.
But 75 cannot be a total of minutes... so therefore we divide 75 by 2
75 ÷ 2 = 37. 5
So it will take you and your friend a total of 37. 5 minutes to wash a car together.
Hope this helped
Ответ:
b
Step-by-step explanation: