Answer:
x=5
Step-by-step explanation:
-12=8-4x
-20=-4x
5=x
Answer:
the first one
Step-by-step explanation:
multiply by 4 subtract 2
Answer:
x= 8
Step-by-step explanation:
The equation of direct variation is
y = kx
When y = 50 when x = 40
50 = k* 40
Divide each side by 40
50/40 = k
5/4 = k
The equation is
y = 5/4x
Let y = 10
10 = 5/4x
Multiply each side by 4/5
4/5 * 10 = 5/4 x * 4/5
8 = x
Answer:
A =
Step-by-step explanation:
Given equation is,
b = f²A + 2HA
To solve this equation for the value of A we will isolate A in one side of the equation.
b = A(f² + 2H)
By dividing the equation by (f² + 2H) on both the sides of the equation.
A =
Therefore, answer will be A =
20 x 3 = 60
60/4 = 15
15 is your answer
hope this helps