Answer:
A
Step-by-step explanation:
x=7
Answer:
3 n minus 4 represents the expression "four less than three times a number"
Total distance travelled = (x.a + 2x -10) miles .
How to solve such time related questions?
The key concept for solving such questions is the relationship between speed, distance and time.
The relationship between them is Distance = Speed X Time
The whole trip can be divided into two parts
Part 1 :- Speed = x mph and time = a hours
∴ Distance = x .a miles
Part 2 :- Speed = x -5mph and time = 2 hours
∴ Distance =(x-5).2 = (2x -10)miles
Total distance = (x.a + 2x -10) miles
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10 percent is the same as saying 0.10 so we simply do this sum of all parts approach.
You should get an answer a bit over 15000 if you plug it into your calculator. Remember, you are taxing a certain amount of dollars at each percentage so don't get hung up on the structure of the taxes. This is why we are subtracting the smaller number from the bigger
The elements of (A n B)' are ( 3, 4 , 5 ,6). Option A
<h3>How to determine the set</h3>
The elements of this set (A n B) explains the common elements of both sets without repetition
Set A = 3, 4
Set B = 5, 6
A n B = 1, 2
(A n B)' = Is the elements both A and B in common but is not found in the universal set
(A n B)' = ( 3, 4 , 5 ,6)
Thus, the elements of (A n B)' are ( 3, 4 , 5 ,6). Option A
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