X= 7 I already solve it before check other questions.
Answer:
z ∝ x^2
Z = kx^2
when z = 36 and x = 2, substitute into the equation above
i.e, 36 = k x 2^2
36 = 4k
therefore k = 9
so the equation becomes
Z = 9x^2
when x =3
Z = 9 x 3^2
Z = 9 x 9
Z = 81
Step-by-step explanation:
Solve using your rules:
180 = 9x + 4x + 37
That means 143 = 13x
Thus x = 11
Answer:
x = (3t - 4y) / m.
Step-by-step explanation:
mx + 4y = 3t Subtract 4y from both sides:
mx = 3t - 4y Divide both sides by m:
x = (3t - 4y) / m.