Please see attached:
Probability is approximately: 0.256
$30 because 12/6 = 2 so 15 x 2 = 30
David purchased some cookies at the cost of
5 for $4 (5/4=1.25) and
sold them at 4 for $5(4/5=0.80).
To find cost per cookie subtract 1.25-0.80=0.45
David made a profit of $180 in total ( divide profit per cookie cost: 180/0.45= 400)
How many cookies did David purchase to make that much money?
He needed to make 400 cookie to make the profit of $180.
Answer:
blue 1
yellow 2
black 1/5
Step-by-step explanation:
blue 1
yellow 2
black 1/5
