X is all of the following except
1 answer:
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Let the three apartments be A, B & C
The rent of A is $x
The rent of B is $y
The rent of C is $z
So x + y + z = 1600 .......(1)
Now
Maintenance of A is 20% of x = 0.20x
Maintenance of B is 20% of y = 0.20y
Maintenance of C is 25% of z = 0.25z
0.20x + 0.20y + 0.25z = 345
Multiplying by 100 we get
20x + 20y + 25 z = 34500
Dividing by 5 we get
4x + 4y + 5z = 6900 .......(2)
Monthly fee of A is 10% of x = 0.10x
Monthly fee of B is 20% of y = 0.20 y
Monthly Fee of C is 10% of z = 0.10z
Now
0.10x + 0.20y + 0.10 z= 1820 - 1600
0.10x + 0.20y + 0.10z = 220
Multiplying by 100 we get
10x + 20y + 10z = 22000
Dividing by 10
x + 2y + z = 2200 ....(3)
Making a Matrix of equation (1), (2) & (3)
is the required matrix
Answer:
Step-by-step explanation:
Given
Required
The domain
There are no undefined points such as denominator of x or square roots.
Hence, the domain is:
Answer:
Step-by-step explanation:
Considering that The Student Council expects to 150 students for a dance, and spends $10 per student.
If the expectancy is that the number of students increases by 8%
Then since the growth is 8%
we can write the the Predicted Number of Students as a Geometric Sequence,
A.
Therefore,
B) If we spend $10 per student on the 1st year, but the Council wants to reduce the expenditure 4% yearly. Since we want to reduce 4% we must multiply by 96%.
Therefore we can write:
C)
The total expenditure for food must be reduced, by 4%. As long as the public goes increasing by 8% yearly this
So,