Answer:
The answer is 8.5
Step-by-step explanation:
Just list all the numbers and cross them out one by one.
Answer: Speed in miles per hour is 45 mph.
Step-by-step explanation:
Since we have given that
Distance covered = 15 miles
Time taken to cover the above mentioned distance = 20 minutes
We need to calculate the speed in miles per hour ,
As we know the formula for " Speed " i.e.

Now, we will put the value of distance and time in the above formula:

Hence, Speed in miles per hour is 45 mph.
The answer is 36 units squared
Answer:
y = x - 4
Step-by-step explanation:
m, gradient = (5 - 3)/(9-7) = 1
Formula : x - x1 = m( y - y1 )
y - 3 = 1 ( x -7)
Equation : y = x -4
I set it in a big problem. Since you know that all the angles of a triable add up to 180,
m<a + m<b + m<c = 180, plug in equations/values
(36) + (3x+12) + (3x+18) = 180, subtract 36
3x+12 + 3x+18 = 144, combine like terms,
6x+30 = 144, subtract 30,
6x=114, divide by 6,
x=19. Plug in X to the equations for m<b and m<c