Answer:
$20 x 122% = $24.40
or look at it this way:
$20 x 1.22 = $24.40
Step-by-step explanation:
Answer: 0.4302
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Sample size : 
Also, these distances are normally distributed.
Then , the formula to calculate the z-score is given by :-

For x=32.5

For x=40.5

The p-value = 

Hence, the required probability :-0.4302
Answer: 2 buses and 4 vans would be needed
Step-by-step explanation:
Let x represent the number of buses that would be needed.
Let y represent the number of vans that would be needed.
There will be six drivers, and two different types of vehicles. This means that
x + y = 6
142 students are going on a field trip. A bus can hold 51 people while a van can hold 10. This means that
51x + 10y = 142 - - - - - - - - - - - 1
Substituting x = 6 - y into equation 1, it becomes
51(6 - y) + 10y = 142
306 - 51y + 10y = 142
- 51y + 10y = 142 - 306
- 41y = - 164
y = - 164/ - 41
y = 4
x = 6 - y = 6 - 4
x = 2
Yes it because any positive number is greater a negative number
Answer:
Solving
we get 
Step-by-step explanation:
We need to find solution of 
Solving the inequality:

Multiply 6 with terms inside the bracket

Subtracting 12 on both sides

Adding 4x on both sides

Divide both sides by -2 and the inequality will be reversed i.e < will be changes to >

So, after solving
we get 