Respuesta :

sqdancefan
The average is computed by dividing the total by the number of contributors.
  48/d = 3.2
  48/3.2 = d . . . . . multiply by d/3.2
  15 = d

The value of d is 15.
dsdrajlin

Answer:

It took 15 days for the swimmer to swim 48 km.

Step-by-step explanation:

Given data

Traveled distance (D): 48 km

Elapsed days (d): ?

Distance swum per day (D/d): 3.2 km/day

We can use proportions to find the days elapsed. The used conversion factor is 3.2 km/day.

48 km × (1 day / 3.2 km) = 15 day

It took 15 days for the swimmer to swim 48 km.

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