In the general case, you have two choices. Isolate one unknown in one of the equation and substitue in the other, or remove one unknown from one of the equation by adding a multiple of the other.
In your case, we will only do the first method because the second equation has only one unknown, x. We isolate it :
You replace in the other equation x by its new value, which yields
You just have to isolate y :
If the +47 in the second equation was meant to be +4y... well... It is a different story. Use the first method I described (substitution). It is similar to what I detailed.
Answer: 100
Step-by-step explanation:
Given : The total number of seats planned in new restaurant =134
The percentage of customers demand a smoke-free area = 62%
It can also be written as
The mean of this binomial distribution will be :-
Standard deviation:-
Now, the number of seats should be in the non-smoking area in order to be very sure of having enough seating there :-
I think answer should be d. Please give me brainlest I hope this helps
Answer:
The scale drawing is 20 units by 4 units
Step-by-step explanation:
20/5 = 4
100/5 = 20
Answer:
a = 28
Step-by-step explanation:
Given : t7= 4 , d = -4
Solution : tn = a + (n - 1) d ......( formula)
t7 = a + (7 - 1) (-4)
4 = a + (6)( - 4)
4 = a - 24
4 + 24 = a
28 = a
therefore, the first term (a) is 28.