Respuesta :
Answer:
The time required them working together to shovel the snow is T = 1.428 hours
Step-by-step explanation:
Given data
Time taken by first person to shovel the snow [tex]T_1[/tex] = 2 hours
Time taken by second person to shovel the snow [tex]T_2[/tex] = 5 hours
Time taken by both persons to shovel the snow
[tex]\frac{1}{T} = \frac{T_1+T_2}{ (T_1) (T_2)}[/tex]
Put all the values in above equation we get
[tex]\frac{1}{T} = \frac{2 +5}{(2)(5)}[/tex]
T = 1.428 hours
Therefore the time required them working together to shovel the snow is T = 1.428 hours
Answer:
t=1 hour and 26 minutes
Step-by-step explanation:
If Eddie takes 2 hours to shovel the snow, then he completes 12 of the work per hour. Brad takes 5 hours to shovel the snow, so he completes 15 of the job each hour. Working together, they shovel the snow in t hours. This can be written as
12+15=1t
Multiply each side by the least common denominator, 10t.
10t(12+15)=10t(1t)
Simplify and solve.
5t+2t7tt=10=10=107 hours
Write as a mixed number.
t=137 hours
Multiply the fraction by 60 to convert the fraction of an hour to minutes.
t=1 hours+37(60 minutes)
Round to the nearest minute. They shovel the snow together in
t=1 hour and 25.714 minutes
t=1 hour and 26 minutes
