Answer:
5% probability neither truck is available
Step-by-step explanation:
We solve this problem building the Venn's diagram of these probabilities.
I am going to say that:
A is the probability that the first truck is available.
B is the probability that the second truck is available.
We have that:
In which a is the probability that the first truck is available and the second one is not 
is the probability that both trucks are available.
By the same logic, we have that:
The probability that both trucks are available is .30.
This means that 
The probability the second truck is available is .50
This means that 
. So
The probability the first truck is available is .75
This means that 
. So
The probability that at least one truck is available is:
The probability that neither truck is available is:
5% probability neither truck is available
Answer:
25 gallons
Step-by-step explanation:
Given:
total no. of gallons= 50
Percentage of sulfuric acid= 50%
Number of gallons of sulfuric acid= total no. of gallons x Percentage of sulfuric acid
Putting values in above equation:
Number of gallons of sulfuric acid= 50 x 50/100
= 50 x 1/2
= 25 !
35+5t=amount in tank A after t minutes
100-8t=amount in tank B after t minutes
same amount
35+5t=100-8t
add 8t both sides
35+13t=100
minus 35 both sides
13t=65
divide by 13 both sides
t=5
5 minutes
Answer:
see below
Step-by-step explanation:
x+ 7.05 = 45.3
Subtract 7.05 from each side
x+ 7.05-7.05 = 45.3-7.05
x =38.25
Let x be the number
x+3.5 = -4.3
Subtract 3.5 from each side
x+3.5 - 3.5 = -4.3-3.5
x = -7.8
x is the cost of the drawing tablet
x+ 3.95 = 6.94 correct
The second equation add the total cost plus the cost of the drawing tablet and sets it equal to the cost of the pencils. This is not correct
6.94+x = 3.95 incorrect
Answer:
10 dollars
Step-by-step explanation:
That would make sense if $1 is 10 percent meaning 1/10 people have a chance of winning....
