x - y + 5z = 3 .... (1)
4x + z = 0
.......(2)
x + 3y + z = -9 .......(3)
From (2) z = -4x, Substitute for z in (1) and (3):-
x - y + 5(-4x) = 3
-19x + y = 3 ......(4)
x + 3y - 4x = -9
-3x + 3y = -9
- x + y = -3 .....(5)
Subtract:- (4) - (5) we get
-18x = 0
x = 0
So z = -4x = 0
Substituting for x and z in equation (3):-
3y = -9
y = -3
Answer is x = 0 , y = -3 and z = 0
First youll want to add 18 and 29. which gives you 43. then you’ll want to find out how much is 29 people percentage wise. so you’ll do 29/43 which gives you 67.44% if it’s answer choices. you round it to the most whole number if they don’t use decimals.
Where did you get the singers from? And what does 80% of y have to do with singers?
Answer:
B. 71%
Step-by-step explanation:
95 × 10% = 9.5%
80 × 20% = 16%
67 × 50% = 33.5%
61 × 20% = 12%
Total - 71%
Answer:
58.5
Step-by-step explanation:
230/4=57.5
57.5+1=58.5