bananamilk
contestada

The time t (in hours) that it takes a group of volunteers to build a
playground varies inversely with the number n of volunteers. It takes
a group of 10 volunteers 12 hours to build the playground. How long
would it take a group of 15 volunteers?

Respuesta :

mollymaelynn

Answer:  8 Hours

T = 8

Step-by-step explanation:

10 x 12 = 15 x t

t=8

Sommieso
Time varies inversely with the number of volunteers.
t=x/n; where t is for time and x/n is the inverse number of the volunteers.
So if : 12=x/10, the x=120.
To get the time it takes for 15 volunteers;
t=120/15,
t=8
So it will take 15 volunteers 8 hours to build the playground

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