For this case we have by definition, if "y" varies directly with "x", then it is true that:

Where:
k: It is the constant of proportionality
We have the following equation:

So, as mentioned above we have to:

Answer:

Option B
Answer:
4^3
Step-by-step explanation:
4×4×4
Multiply 4 and 4 to get 16.
16×4
Multiply 16 and 4 to get 64.
64=4^3
Y= 7x - 7z -9
+9 +9 Y+9+7z /7=x
Y+9 = 7x - 7z
+7z +7z
Y+9+7z = 7x
/7 /7
Answer:
4
Step-by-step explanation:
Step 1:
13 = 2f + 5 Equation
Step 2:
8 = 2f Subtract 5 on both sides
Step 3:
f = 8 ÷ 2 Divide
Answer:
f = 4
Hope This Helps :)