23(x)-85
Substitute 12 for x
23(12)-85
276-85
191<span />
Answer:
Binomial distribution
Step-by-step explanation:
For each processor, there is only two possible outcomes. Eithey they will require repair, or they will not. This means that we solve this problem using the binomial probability distribution.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
Hi there!
In order to use the elimination method, you have to create one variable that has the same coefficient. This is to be able to eliminate one variable and have a one variable equation (which you can then solve).
In your case, we'll have the "x" have the same coefficient by multiplying the top equation by 4 and the bottom equation by 2 :
4( -2x + 3y = -4) → -8x + 12y = -16
2( 4x - 2y = 16) → 8x - 4y = 32
Now that both of your equation have a variable with the same coefficient, you need to choose rather you need to add or subtract the equations in order to get rid of the variable (in this case we want to get rid of the "x").
In your case, you want to add both equation together which will give you :
8y = 16
Now that you only have one variable, all you need to do now is solve the equation for "y" :
8y = 16
Divide each side of the equation by 8
y = 2 → Your answer
There you go! I really hope this helped, if there's anything just let me know! :)
Answer:9 nickels and 19 dimes.
Step-by-step explanation:
Let 
be the number of nickels Kay has.
Let 
be the number of dimes Kay has.
Value of 
nickel is $
Value of nickels is $
Value of dime is $
Value of nickels is $
Given that Kay has a total of 
coins.
So,
...(i)
Given that Kay has a total value of $
So,
...(ii)
Using (i) and (ii),
Answer:
380
Step-by-step explanation:
if you have 400 hundread you would subtract 5% from 400 amd you would get 380.
