Answer:
The solution is x=1,y=2,z=3
Step-by-step explanation:
The given system of equations is ;\
2x−3y+4z=8...(1)
3x+4y−5z=−4...(2)
4x−5y+6z=12...(3)
Make x the subject in equation (1)
Put equation (4) into equation (2) and (3)
Multiply through by;
Expand;
Simplify;
Equation (4) in (3)
Put equation (6) into equation (5)
z=3
Put z=3 into equation (6)
y=2(3)-4=2
Put y=2 and z=3 into equation 4
The solution is x=1,y=2,z=3
Answer:
the Total cost= 1,200,000*number of states
Step-by-step explanation:
Given the cost of each home is $80,000
The number of homes per state are 15
The Total cost of the project is = (Total number of houses per state) * (cost of each house) * (the number of states).
Therefore the total cost =15*80000*Number of states.=1,200,000*number of states
Answer:
50 million
Step-by-step explanation:
current value: c
initial value : i
c = 1.2 × i
x - i = 10
10 + i = 1.2 × i
0.2 ×i = 10
i = 50
I think its A!! But im not sure
Answer:
256
Step-by-step explanation:
We are given the series
1, 16, 81, __, 625, 1296
The missing number in the sequence is the fourth term
From the above sequence, we know that
1, 4², 9² , __, 25² , 36²
Difference between first term = 4 - 1 = 3
9 - 4 = 5
x - 9 = 7
x = 9 + 7 = 16
Hence, the fourth term = 16²
= 256
