Mathematics, 11.06.2020 21:57 chycooper101
β Jack can paint a room in 9 hours alone. If Sara helps, they can do the job in 5 hours. How long would it take Sara to paint the room alone?
Answers: 2
Mathematics, 21.06.2019 18:20
The total cost of anjaβs trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?
Answers: 2
Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
Answers: 2
β Jack can paint a room in 9 hours alone. If Sara helps, they can do the job in 5 hours. How long
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