direct proportion y=kx , k is constant and k does not equal to 0.
17.5=k(21)
k=5/6
when x =39
y=5/6 ×39
y=32.5
Answer:
A
Step-by-step explanation:
When you read the question it says that her average speed from the library to the gym is 15 mph less than her speed from her home to the library. So x - 15 is what describes that situation.
If it is A it cannot be anything else.
B is incorrect. x - 15 is not a time. It is a rate. It can be used to develop the amount of time, but by itself it is still A.
C is incorrect. Her average speed from her house to the library is x
D is incorrect. The distance is given as the same as from her home to the library as from the library to the gym. Both are 4
Answer:
Option C.
Step-by-step explanation:
The complete question in the attached figure
we know that
The given ratio is equal to
Simplify
Divide by 3 both numerator and denominator
therefore
4/6 is an equivalent ratio of 12/18
1 = 2
2= 8
3 = 14
4 = 20
Cant see the graph, but whichever goes through these points. Use Desmos to graph the function if you need further help.