Answer:
what's the formula that you're supposed to apply the x to ?
Simple problem, just use a proportion:
2.5/35 = X/55
Now cross multiply:
137.5 = 35X
X = 3.928
4 red, and 6 black.....total of 10
P(black) = 6/10 reduces to 3/5
without replacement
P(black) = 5/9
P(both) = 3/5 * 5/9 = 15/45 reduces to 1/3 <==
Answer:
you add both the purchases then find 7% of them
Step-by-step explanation:
well the answer is 254.66 if you needed the answer and not just the explanation
