Answer:
Step-by-step explanation:
5 /. 3/5 =. 5x5 / 3 = 25/3
Answer: 7.8 days
<u>Step-by-step explanation:</u>
Painter can get the job done in 15 days so gets
of the job done in 1 day.
Coworker can get the job done in 10 days so gets
of the job done in 1 day.
Together, they get
of the job done in 1 day.
Painter worked for 3 days so completed
of the job.
That leaves a remaining of
of the job to be completed.
Let x represent the number of days it will take them to work together.
Painter + Coworker = Together

Multiply by 30 to eliminate the denominator:

Simplify and solve for x:
2x + 3x = 24
5x = 24

x = 4.8
Remember that Painter worked 3 days alone in addition to the 4.8 days they worked together.
So the total time to paint the building is 3 + 4.8 = 7.8
Multiply 3/4 and 4 and you simply get 3 (these are the amount of tickets bought) Then divide the cost by tickets which results in 2.05
(3/4) x 4=3
6.15 / 3 = 2.05
The problem gives you the time in hours, but you're looking for your answer in minutes so change 1/10 of an hour to minutes first. To do this, multiply 1/10 by 60 to get 6 minutes. Since there are 4 quarters in a whole, multiply 6*4. It would take her 24 minutes to drink the whole shake