Answer:
7a-2
Step-by-step explanation:
to represent the perimeter of 2a-3 and 2a and 3a+1
The given sides are 2a-3 and 2a and 3a+1
To find out the perimeter we add all the sides
Now combine like terms to add the terms
2a+2a+3a becomes 7a
-3+1 is -2
Now the perimeter becomes
An expression to represents the perimeter is 7a-2
Answer: The total cost of 15 carnival tickets=$37.50
Step-by-step explanation:
We are given that ,
The equation represents the total cost of buying buying carnival tickets , where x= Number of carnival tickets and y= Total cost.
To find : The cost of 15 carnival tickets.
In the given equation , we substitute the value of x = 15 we get
Thus , According to the equation, the total cost of 15 carnival tickets= $ 37.50
Hence , the correct answer is $ 37.50 .
For this case we have that by definition, the slope of a line is given by:
Where:
and
are two points through which the line passes.
According to the figure we have to, the line goes through:
Substituting we have:
Thus, the slope of the line is -1.
Answer: