The total weight of a delivery truck is equal to the weight of the empty truck plus
1 answer:
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Answer:
3 is the missing value
Step-by-step explanation:
Given
Required
Complete the blank
The model is not given; but the question can still be solved.
We have:
Add 8 to 4
Add 24 to 12
Divide both sides by 12
Rewrite as:
Hence, the blank will be completed with 3
The general form of the quadratic equation is :
The discriminant is :
And the general solution is :
So, there are 3 situations for D
1. D = 0
So, the roots of a quadratic equation are two similar roots
2. D > 0
so, roots of a quadratic equation are two different roots
3. D < 0
so, roots of a quadratic equation are not real, two comlex roots
<h2>The crime gets cleaned up at 2:00 PM</h2>
Step-by-step explanation:
Let the work be w.
Batman can clean up all of the crime in Gotham City in 8 hours working alone.
Robin can do the same job alone in 12 hours.
Robin starts work at 8:00 AM and Batman Joins at 10:00 AM.
Let the time of completion of work after Batman's joining be t.
We have time of working of Robin = t + 10:00 -8:00 = t + 2
So
After 4 hours of 10:00 Am work gets completed.
Time = 10:00 AM + 4 hours = 2:00 PM
The crime gets cleaned up at 2:00 PM