contestada

5. A bag holds nine $1 bills, seven $5
bills, and two $10 bills. You pick a bill,
record the denomination, and return it.
In 438 repetitions, how many times
can you expect to pick $5?

Respuesta :

jtm2588

Answer:

170 1/3

Step-by-step explanation:

There are a total of 18 bills in the bag.

9 + 7 + 2 = 18

There are 7 five dollar bills, so the probability of selecting a five is:

(p of selecting a $5) = 7/18

Multiply the probability by the number of repetitions.

7/18 x 438/1

3066/18 = 170 1/3

Otras preguntas