Can someone please explain to me how to solve this? I don't really understand how.
1 answer:
Step-by-step explanation:
If a point on a line is the midpoint, that means that the two segments created by the point are equal. In this case, XA = AY
We can set the two lengths equal to each-other.
Now that we know x = 6, we can solve for the lengths of each segment.
XA = 3x = 3(6) = 18
AY = 5x - 12 = 5(6) - 12 = 30 -12 = 18
XY = 3x + 5x - 12 = 8x - 12 = 8(6) - 12 = 48 - 12 = 36
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Answer:
25
Step-by-step explanation:
From the given information;
Numbers of posters that can be printed in an hour = no of impression/hour × no of plate utilized in each impression.
= 1000x
Thus, the required number of hours it will take can be computed as:
cost per hour = 125
If each plate costs $20 to make, then the total number of plate will equal to 40x
∴
The total cost can be computed as:
At C'(x) = 0
x = 25
where; x = 25
C''(x) = 1.6
Thus, at x = 25, C'' > 0
As such, to minimize the cost, the printer needs to make 25 metal plates.