Answer:
(a) 160 Naira
(b) Undefined
Step-by-step explanation:
Given
Let:
cost of bag of rice
people demanding the bag
So, we have:
---- The variation


We have:

When: 

-- (1)
When: 
--- (2)
Subtract (1) from (2)


Multiply through by 12



To solve for x, we have:
-- (1)
This gives:




So, the equation is:


Solving (1): y; when x = 225
We have:





Solving (2): x; when x = 200
We have:


Collect like terms


Cross multiply


<em>x is undefined</em>
The answer is C. If the verticle line intersects with the graph more than once, it is NOT a function.
Answer:
49 + 246 qrst
Step-by-step explanation:
Answer: Angle B measures 70 degrees
Step-by-step explanation: One angle is given as 40 while the other two angles are yet unknown.
Remember that the sum of the interior angles in a triangle equals 180 degrees. In other words
Angle A + Angle B + Angle C = 180
Therefore
40 + (2x - 30) + (x + 20) = 180
40 + 2x - 30 + x + 20 = 180
By collecting like terms we have
40 - 30 + 20 + 2x + x = 180
30 + 3x = 180
Subtract 30 from both sides of the equation
3x = 150
Divide both sides of the equation by 3
x = 50
Having calculated x = 50 we can now compute the value of angle B as follows;
When x = 50,
2x - 30 becomes
2(50) - 30
= 100 - 30
= 70.
Angle B measures 70 degrees
X=5 because you subtract 5 from both sides and then you get x=5 remainding