Answer:
0.8
Step-by-step explanation:
A: P(1) = .6, P(2) = .5, P(1 and 2) = .3
P(1 or 2) = P(1) + P(2) - P(1 and 2) .6 + .5 - .3 = 0.8
Answer:
P = 9
Step-by-step explanation:
When P = 9, we could multiply 9 to (2n+ 3).
We would get:
18n + 27
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Have a great summer :)
Answer:

Step-by-step explanation:
By putting the numbers in the given equation,

2x + 3 + 3x = 7x + 9
5x + 3 = 7x + 9
(5x + 3) - 7x = (7x + 9) - 7x
(5x - 7x) + 3 = 9
-2x + 3 = 9
(-2x + 3) - 3 = 9 - 3
-2x = 6

-x = 3
x = -3
Therefore, our equation is correct which has a negative result.
In place of 6 if we use 8, value of x will be negative again.
Answer:
the truck driver can drive 64 miles in one hour.
Step-by-step explanation:
Number of miles driven in 45 minutes = 48 miles
48/45x60=64