Answer:
x=-7i,7i
Step-by-step explanation:
Answer: the cost of one shirt is $28
the cost of one sweater is $23
Step-by-step explanation:
Let x represent the cost of one shirt.
Let y represent the cost of one sweater.
Lonnie purchased three sweaters and two shirts for $130. It means that
2x + 3y = 130 - - - - - - - - -1
If the sale price of a shirt was five dollars less than the sale price of a sweater, it means that
x = y - 5
Substituting x = y - 5 into equation 1, it becomes
2(y - 5) + 3y = 130
2y - 10 + 3y = 130
2y + 3y = 130 + 10
5y = 140
y = 140/5
y = 28
x = y - 5 = 28 - 5
x = 23
Answer:
(A) 0.4196
(B) 0.2398
(C) 0.0020
Step-by-step explanation:
Given,
Total songs = 15,
Liked songs = 6,
So, not liked songs = 15 - 6 = 9
If any 5 songs are played,
Then the total number of ways = 
(A) Number of ways of choosing 2 liked songs = 
Since,

Thus, the probability of choosing 3 females and 2 males = 

= 0.4196
Similarly,
(B)
The probability of choosing 3 liked songs = 

= 0.2398
(C)
The probability of choosing 5 liked songs = 

≈ 0.0020
Answer:
63.63 seconds, or round up if you need to?
Step-by-step explanation: