Julie has two formal events to go to. she has six formal dresses--two blue ones, one black, one red, and two white
given she will not wear the same dress to both events she calculates the probability of her wearing blue to both
events as
22
p(blue and blue) =
is she correct?
a)
yes, the two events are independent.
no, the two events are independent
no, the probability of the second dress being blue changes after she
chooses the first dress.
d)
yes, the probability of the second dress being blue is not dependent on the
first dress being blue.

c on Usatestprep

Step-by-step explanation:

Took the test

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x