Answer:
- 7/9
Step-by-step explanation:
-4/9 + (-1/3)
= -(4/9) - (1/3)
= - (4/9 + 1/3)
= - (4/9 + 3/9)
= - [(4 + 3) / 9 ]
= - 7/9
Answer:
No factors.
3 - x^2 is prime.
Step-by-step explanation:
Answer:
Hence the probability that she paid cash is 0.105
Step-by-step explanation:
P(cash) = 0.3
P(credit card ) = 0.3
P(debit card ) = 0.4
P ( more than $50 | cash ) = 0.2
P (more than $50 | credit card ) =0.9
P (more than $ 50 |debit card ) = 0.6
P ( more than $50) = P ( more than $50 | cash )* P (cash) + P (more than $50 credit card ) * P(credit card ) + P (more than $ 50 |debit card )* P(debit card )
= 0.2 * 0.3 + 0.9 * 0.3 + 0.6* 0.4
= 0.57
P ( more than $50) = P ( more than $50 | cash )* P (cash) / P ( more than $50)
= 0.2* 0.3 / 0.57
= 0.105
Answer:
56/40 + 15/40 = 71/40
Step-by-step explanation:
