A ball is drawn at random from a box containing 6 red balls, 4 white balls and 5 blue balls. Determine the
probability that it is red ball or white ball.

If this dont help then im sorry report me i guess

(a) red.

6 ways out of 15 = 6/15 = 2/5

(b) white,

4 ways out of 15 = 4/15  

(c) not red.

That's the complement of (a), so it's 1 - 2/5 = 3/5

(d) red or white.

10 ways out of 15 = 10/15 = 2/3

Step-by-step explanation:

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.