<span>The number of ways to select one component from each supplier is 3*4*5 since you can choose one of three from A, in each case you can then choose 1 of 4 from B and lastly for each selection from A and B you have 5 possible choices for C.
After that you have 12-3=9 components left for choice of the fourth component to test. Thus there will be 3*4*5*9 different ways to choose at least one from each supplier.</span>
Since y=x+3 (given)
Put value of y in equation x+y=(-3)
x+x+3=(-3)
2x=(-6)
x=(-3)
Put x=(-3) in x+y=(-3)
(-3)+y=(-3)
y=0
So, x=(-3)
y=0
Answer:
87.08% percentage of families spend more than $4000 annually on food and drink
Step-by-step explanation:
Given -
average annual expenditure on food and drink for all families is $5700
Mean 
= 5700
standard deviation 
= 1500
Let X be the no of families spend annually on food and drink
percentage of families spend more than $4000 annually on food and drink =
= 
= 
Using 
= 1 - 
= 1 - .1292
= .8708
= 87.08%
Answer:
$242.78
Step-by-step explanation:
Given :
Room cost for 1 night = $199
Tax rate = 22% or 0.22
Tax for room for 1 night = 0.22 x $199 = $43.78
Total cost for one night,
= room cost + tax
= $199 + $43.97
= $242.78
