X= 75
the equation is
is/of %/100
48 = is
64 = %
X = of
100 = 100
48 X 100 = 4,800
64 X x = 64x
64x / 64 = x
4800 / 64 = 75
<span>SO... x = 75</span>
Answer:
in 7 days level of water changed in lake= -28
the water level change each day= -28/7= -4cm
Step-by-step explanation:
150 parents said yes, 30 said no.
30 adults said yes, 40 said no.
Simplifying the numerator becomes (x-1)(x+3)/(x-4).
The denominator becomes (2x-1)(x+3)/[(x-4)(x+4)].
Simplifying it becomes (x-1)(x+4)/(2x-1), making it (x^2+3x-4)/(2x-1), or answer choice A.